Print first n numbers in python For Examples: Input: start = -5, end = 3 Output: [1, 2, 3] Below are the different methods to solve this problem: Using List comprehension List comprehension iterates over the range, selects numbers greater than zero, and stores them in a list. Write a Python program to print first 10 natural numbers using for loop. In every iteration, add the num to the sum, and the value of the num is decreased by 1. A number is even if it is divisible by 2 for example 4, 100, 24 etc. The function calls itself with (n-1) until it reaches the base case of n = 1. Using Enumerate List In this approach, we will use the enumerate list to find the cube sum of n natural numbers in single line. Jul 14, 2021 · Python Program to Calculate the Sum of Squares of First n Natural Number In this tutorial, you will learn how to create a program to calculate the sum of squares of first N natural numbers. The numbers having the last digit is 1, 3, 5, 7 or 9 are odd numbers. You could even use the built-in sum() function with range(), but despite this code is looking nice and clean, it still runs in O (n): Sep 27, 2025 · To find the sum of the first n natural numbers using recursion, we define a function recurSum (n-1). May 24, 2025 · Python Exercises, Practice and Solution: Write a Python program to compute the sum of the first n prime numbers. Write a Python Program to Print Natural Numbers using While Loop and For Loop with an example. Nov 14, 2013 · Recursion is a wrong way to calculate the sum of the first n number, since you make the computer to do n calculations (This runs in O (n) time. join() List comprehension is a concise way to create lists in Python Oct 28, 2025 · Given a range of numbers, the task is to print all even numbers within that range. It simplifies code by eliminating the need for explicit for loops and append () calls. This program is a fundamental exercise that showcases the use of loops in Python and helps us understand the iterative nature of programming. Jul 23, 2025 · Write a program to print the first 10 prime numbers. Apr 9, 2024 · The map () function takes a function and an iterable as arguments and calls the function with each item of the iterable. Note : Natural number is positive integers. This program is also called as Nov 6, 2024 · Explore various techniques to efficiently read the first N lines of a file in Python, including code examples and performance considerations. Aug 27, 2024 · Learn how to generate the Fibonacci series in Python using various methods, including for loops, while loops, and functions with examples. Once the recursion unwinds, it prints the numbers in the ascending order from 1 to 10. We need to iterate through every number below that input integer and check if it is a prime number or not simultaneously. Using range () with Step The built-in range Apr 10, 2015 · Say if you had a number input 8 in python and you wanted to generate a list of consecutive numbers up to 8 like [0, 1, 2, 3, 4, 5, 6, 7, 8] How could you do this? Jan 29, 2024 · Program to print first 10 even numbers. Oct 8, 2015 · I know there are a number of ways to find the first 100 prime numbers but please help me in my approach. stdout. Auxiliary Space: O (n) where n is the number of elements in the list “test_list”. , remainder = 0). You need to return fib(n-1) + fib(n-2) Jun 4, 2022 · Given a natural number n, the task is to write a Python program to first find the sum of first n natural numbers and then print each step as a pattern. Sep 4, 2025 · In this approach, we use recursion to find the sum of the first n natural numbers. Oct 16, 2024 · The simplest way to find and print prime numbers from 1 to N in Python is by using basic iteration and checking for each number’s divisibility. If it is a prime number Jul 23, 2025 · Method 4: Using Slice Function Python slice () function is used to get the first N terms in a list. x[:n] In the following program, we take a string value in variable x, get the first 4 Apr 29, 2023 · Few important tips about the program 1. print("====The First 10 Even Natural Numbers====") for i in range(1, 11): print(2 * i) This Python program displays the first 10 even natural numbers using a while loop. It does not print the sequence. Includes methods using loops and formula-based approaches with code examples. Example In the given example, we are printing the number from 0 to 4. Using range () with Step This method directly generates odd numbers using range () function with a step value of 2. Examples: Input: N = 4 Output: 2, 3, 5, 7 Input: N = 1 Output: 2 Approach 1: The problem can be solved based on the following idea: Start iterating from i = 2, till N prime numbers are found. Mar 27, 2025 · F (0) = 0 F (1) = 1 F (n) = F (n-1) + F (n-2) for n > 1 Let’s delve into the different Python implementations for generating the Fibonacci series. Sep 26, 2025 · Fibonacci Series in Python: Fibonacci series is a pattern of numbers where each number is the sum of the previous two numbers. An original list was defined as original_list with 7 elements representing weekdays, and variable n was defined with a value of 5, which meant the number of elements to be extracted from the original list. print("====The First 10 Natural Numbers in Reverse====") for i in range(10, 0, -1): print(i) This Python program displays the first 10 natural numbers in reverse or descending order using a while loop. To get the list’s first n elements, the islice function from the itertools module was used. Let’s see how to use Apr 9, 2024 · To sum all numbers in a range, use the `range()` class to get a range of numbers. Jun 9, 2018 · In this tutorial, we will write a simple Python program to calculate the sum of first n natural numbers. To use this function, simply call it with the desired value of n. This function returns a slice object which is used to specify how to slice a sequence. The islice function took two arguments, as we Sep 12, 2021 · Program to print the first n terms of a Fibonacci Series The python program to print n terms of fibonacci series is as follows: # Owner : TutorialsInhand Author : Devjeet Roy number = int (input ("Enter count: ")) a = 0 b = 1 sum_fib = 0 count = 1 print (a,b, end=" ") while count <= number-2: sum_fib = a + b a = b b = sum_fib count += 1 print (sum_fib, end=" ") The output of the python program Jul 4, 2023 · Python Program to print first n odd numbers using For loop by codecrucks · Published 07/04/2023 · Updated 07/04/2023 I'm new to python and I am trying to make a code to print all the square numbers until the square of the desired value entered by the user. It’s range from 1 to infinity. Output Format: 0 2 4 6 8 10 12 14 16 18 Approach: Checking Parity using Modulo operator (%) Using the modulo % operator we can find the remainder of any number when divided by 2, giving us the parity according to two cases: remainder = 0: Even number remainder = 1: Odd number While we Here is a Python program to find the sum of first n natural numbers using while loop with detailed explanations and output. 3. For example, if n = 5, the sum of squares would be 12 + 22 + 32+ 42+52=55. Define a recursive function, printNumber(n), to print numbers from 1 to n, checking if n is greater than 0. To write a program for the Fibonacci series in Python using a for loop, you can start with the first two terms (0 and 1) and then iterate over the desired number of terms, calculating each term based on the previous two terms. This can be useful for a variety of applications, such as generating test data Jul 11, 2025 · The Python range () function returns a sequence of numbers, in a given range. 1. It is a simple Python function that can be used to generate a list of even numbers quickly and easily. This tutorials is part of Python Basics. So, this is a Python program to find the sum of the first n natural numbers using a while loop. Oct 28, 2025 · Range: 5 to 15 -> Odd numbers = 5, 7, 9, 11, 13, 15 Let’s explore different methods to print all odd numbers within a range. Then use a for loop to iterate the numbers from 1 to N Then check for each number to be a prime number. This ingrained approach handles the pyramid structure neatly by allowing simple backtracking. x[:n] In the following program, we take a string value in variable x, get the first 4 Please note, in your call You are not calling fib () recursively You need a wrapper method so that the input is not requested every time the method is called recursively You do not need to send in a list. Taken a number input from the user and stored it in a variable num. numbers = 10 for num in range(1, numbers + 1): print(num, end=' ') Output: Calculate the sum of squares of the first N natural numbers in Python. Jul 11, 2025 · Explanation: list (range (r1, r2)) creates a sequence of numbers from r1 to r2 using range () and converts it into a list li with list (). After that I would like to select another number from the remaining numbers of the list (N-1) and then use that also. But before we jump into the programming part first let’s understand what are natural numbers. The base case will be if n=0 or n=1 then the fibonacci number will be 0 and 1 respectively. Oct 28, 2025 · Learn how to write a Python program to add N numbers accepted from the user. I can't get the odd numbers to print just the odd numbers and I don't know how to not print the []'s on the output. Python Program to Print Odd Numbers from 1 to N using For Loop This Python program allows the user to enter the maximum limit value. Method 3: Using a While Loop The while loop method continues to execute as long as a certain condition is true. 1 and the number itself N Output Format: 2, 3, 5, 7, 9 Approach: Prime Test: To check whether a number N is prime we can check its divisibility with each number from 2 to N - 1, If it is divisible by any number in this range, we can conclude that N is not a prime To print the sum of the first ‘n’ numbers in Python, you can use a mathematical formula that calculates the sum of an arithmetic series. The function initializes variables total and count, iterates through the numbers from 1 to N, and accumulates the sum in the total variable. Learn how to create a list of numbers from 1 to n in Python using For Loop and List Comprehension with detailed examples. All other terms are obtained by adding the preceding two terms. In this post learn how to print prime numbers in python from 1 to 100, 1 to n, and in a given interval with an algorithm, explanation, and source code. Way 1 – Printing Dec 19, 2024 · While loops are the traditional way to print first m multiples of n, Python provides other efficient methods to perform this task without explicitly using loops. Before writing a python program to print natural numbers, we will see what actually is a natural number? Jul 11, 2025 · The Python range () function returns a sequence of numbers, in a given range. In this Python examples tutorial, you will learn how to print natural numbers in Python. Pass the `range` object to the `sum()` function. Next, it is going to calculate the sum of even numbers from 1 to that user-entered value. We know We initialize the first term to 0 and the second term to 1. Write a Python Program to Calculate the Sum of Even Numbers from 1 to N using the While Loop and For Loop with an example. Note: Natural number is positive integers. In the first iteration, we print the current value, which is 1. Algorithm to print prime numbers: First, take the number N as input. Recursive Method to Mar 2, 2024 · Output: 25 Here the code defines the function sum_of_odd_numbers(n) which utilizes list comprehension to make an inline loop over a range of odd numbers and then computes their sum using Python’s built-in sum() function. Then, zero is the number of elements in the empty set; 1 is the number of elements in the set containing one natural number; and so on. The Fibonacci sequence follows a specific pattern that begins with 0 and 1, and every subsequent number is the sum of the two previous numbers. Before writing a python program to print natural numbers, we will see what actually is a natural number? Aug 11, 2025 · Python Exercises, Practice and Solution: Write a Python program to print the first n lucky numbers. e. Then use for loop and print the values. Jul 23, 2025 · Example 1: Calculate the Sum of N Numbers Using While Loop In this example, a Python function sum_of_natural_numbers is defined to calculate the sum of the first N natural numbers using a while loop. Efficiency Considerations Recognize that looping is efficient for generating Fibonacci numbers up to a moderate sequence length. Python Program to Calculate Sum of Even Numbers from 1 to N using For Loop This Python program allows the user to enter the maximum limit value. If the iterated number is found prime number then print that number as an output. In this, we keep looking for smaller even term when we find one and move to rear end in case we don't Above code: Loop over an iterable which could be a generator or list and return up to n elements from iterable. # Sum of N numbers using a while loop in Python To get the sum of N numbers using a while loop: Iterate for as long as the number is greater than 0. Apr 27, 2022 · Print first + second Update first and second variable (first will point to the second, and the second will point to first + second) Decrement the length variable and repeat from step 3 Once the loop terminates, terminate the program How the iterative algorithm works: Consider that we need to print a Fibonacci sequence of length 7. Jan 7, 2024 · Given a natural number 'n', print squares of first n natural numbers without using *, / and -. Explore four simple methods using loops, functions, and lists with clear examples. Using mathematical formula This method uses mathematical formula to directly compute the Write a Python Program to Print Odd Numbers from 1 to N using While Loop and For Loop with an example. But before writing the program let’s understand what are even numbers. We have found out the first ten multiples of the number. In this guide, we will see various ways to write a python program to print naturals numbers. Input: 5 Here is my code. The recursion continues until the base case is reached, where n = 0, at which point the function returns 0 to stop further calls. Jul 23, 2025 · Given a number N, the task is to print the first N prime numbers. Nov 22, 2021 · The question was tp :write a program to find the sum of n natural numbers using while loop in python. This method keeps adding odd numbers until n odd numbers have Dec 21, 2023 · Here, we will write a Python program to find the sum of square of first N natural numbers. Jul 12, 2025 · In summary, the Sieve of Eratosthenes algorithm has a time complexity of O (N log (log (N))) and a space complexity of O (N) to print all the prime numbers from 1 to N. Let me show you an example and the complete code. This method would only give you the nth number in the sequence. Examples : Input: n = 5 Output: 0 1 4 9 16 Input: n = 6 Output: 0 1 4 9 16 25 We strongly recommend to minimize the browser and try this yourself first. I find the value of count to be increasing but for some reason the while loop condition does Mar 6, 2024 · This snippet defines a function print_numbers_recursive that continues to call itself with a decremented value of n and prints the number when the base case is met (i. Understand different number types, operations, and practical examples to enhance your coding skills. Example: DevMaesters is a full-stack development hub offering programming tutorials, project showcases, and a vibrant developer community. Jan 3, 2025 · Recursive Approach - O (n*2n) Time and O (n) Space Find nth fibonacci number by calling for n-1 and n-2 and adding their return value. Using List Comprehension List comprehension provides a compact way to generate lists. At each step, the function adds the current number n to the sum of all smaller numbers by calling recurSum (n-1). On each iteration, decrement the Learn how to create the Triangle Numbers with Python using different approaches to practice your Python programming skills. Here’s an example code snippet. In this tutorial, you'll learn about numbers and basic math in Python. The sum of squares is the result of adding up the squares of each number from 1 to n. Aug 1, 2023 · This Python code demonstrates how to use a while loop to print the first 5 natural numbers. In this program, you'll learn to find the sum of natural numbers using recursive function. In this post, we will learn how to find the sum of natural numbers in Python using for loop, while loop, and function with detailed explanations and examples. . Value of variable increments or decrements automatically by step which can be given as part of the range function. Aug 11, 2025 · Python Exercises, Practice and Solution: Write a Python program to print the first n lucky numbers. If you have an integer value, you can directly pass it to the print() function to print it. To print numbers from 1 to N using recursion in Python, you need to identify the base case and understand how to call the function recursively. print("====The First 10 Natural Numbers====") for i in range(1, 11): print(i) This Python program displays the first 10 natural numbers using a while loop. Jul 17, 2020 · In this post, we will see how to print first n odd natural numbers in python? Odd Numbers: Any integer that is positive or negative which can not be divided exactly by 2 is an odd number. In case n is greater or equal to number of items existing in iterable then return all elements in iterable. Then you arguably do not really want to create a list of numbers from 1 to N just for the purpose of picking one (why not just ask for a random number in that range directly, instead of explicitly creating it to choose from Aug 29, 2021 · In this article, we are going to calculate the sum of squares in python. In this post, we will learn a python program to print numbers from 1 to 100, 1 to n, and in a given interval using for-loop and while loop both. Dec 10, 2024 · This function fibonacci uses tuple unpacking to update the values of a and b. Follow our step-by-step guide and master prime number algorithms in Python today! Aug 11, 2025 · Different Methods to Print Fibonacci Series in Python Method 1: Using Recursion Method 2: Using Dynamic Programming Method 3: Using While Loop Method 4: Cache Method 1: Python Program for Fibonacci numbers Using Recursion Recursion is the primary programming technique in which a function or algorithm calls itself directly or indirectly until a specified condition is met. Examples: Input: n: 5 Output: 5 first even numbers are: 2 4 6 Jan 28, 2013 · I'm trying to write a code that lets me find the first few multiples of a number. One of the important thing to remember in python is, it does not have any “ {” for marking the code blocks like in any other programming languages. We will also explore different ways to print prime numbers in Python, thoroughly Apr 9, 2024 · We used the print() function to print integer values. Note: A number N is said to be prime if it has exactly two factors i. Aug 16, 2023 · To print numbers from 1 to n in Python, you can use a simple loop. Python Program to print first n prime numbers Apr 8, 2025 · Learn how to find sum of first n Prime numbers in Python using loop, math module, filter() and itertool Feb 14, 2025 · In this tutorial, we will discuss The Write a Python program to find the first n prime numbers using loops and python methods Mar 27, 2023 · If you are starting with Python programming, one of the first things you will learn to do is to create a list of numbers from 1 to N. An even number is any number that is exactly divisible by 2 (i. Mar 3, 2024 · The print_numbers() function is designed to first recurse and hence stack calls until the base case is reached; it then unwinds and prints each level of numbers while returning to the initial call. Learn how to write a Python function that prints the first n even numbers. Dec 23, 2021 · Simple use if statement with a while loop to calculate the Sum of n numbers in Python. Feb 1, 2022 · This integer is the number limit till where we need to find all prime numbers. Jun 27, 2024 · Learn about Python numbers with our easy guide. Write a function that given a number, n, will formulaically compute the nth Triangular number. The print () function takes one or more objects and prints them to sys. Method 2: List Comprehension and str. 2. This means to say the nth term is the sum of (n-1) th and (n-2) th term. Let’s explore some real-life examples: Accounting and Budgeting Dec 22, 2021 · You have to take n number input from the user or provide a default value of to sum of n numbers in Python using for loop. The most common use of it is to iterate sequences on a sequence of numbers using Python loops. We are going to learn different ways to calculate the sum of squares in python. Examples: Input: n: 5 Output: 5 first odd natural numbers are Jul 23, 2025 · The goal here is to calculate the sum of squares of the first n natural numbers. Program to print multiples of a given number in python snapshot: Write a Python Program to find the Sum of N Natural Numbers using While Loop, For Loop, Functions, and recursion with an example. Dec 27, 2021 · Print n numbers in Python using for loop Simple example code prints first n numbers in Python. Method #2 : Using binary search (Sorted list) The binary search can also be employed on list when we have sorted list. We have to run a loop from 1 to 10 and have multiplied it with the number to get its multiples. First, initialize a variable “numbers” with the numbers you want to print. Using list comprehension List comprehension is a concise and efficient way to create lists by iterating over an iterable like range (), in a single line. If you are a beginner python programmer, then this example will very helpful for you. Method 1: The idea is to calculate next square using previous square value. Oct 25, 2015 · My question is: How can I create a list of n Fibonacci numbers in Python? So far, I have a function that gives the nth Fibonacci number, but I want to have a list of the first n Fib. Consider the following relation between square of x and (x-1). Dec 10, 2016 · This program to print first n even numbers can be written in many ways, but as part of this article you will be introduced to a new concept in python, especially with a “for” loop. This is one of my attempts: def printMultiples(n, m): for m in (n,m): print(n, end = ' ') I figured out that, by In this Python examples tutorial, you will learn how to print natural numbers in Python. If a number is prime, print it. This function takes an integer n as input and prints the first n even numbers. numbers for future work. Jul 23, 2025 · Python slice () function is used to get the first N terms in a list. Jul 12, 2025 · Input: N = 5 Output: 2, 3, 5 Explanation : The output "2, 3, 5" for input N = 5 represents the list of the prime numbers less than or equal to 5. For example: Range: 1 to 10 -> Even numbers = 2, 4, 6, 8, 10 Range: 5 to 15 -> Even numbers = 6, 8, 10, 12, 14 Let’s explore different methods to print even numbers within a range. For the base case, one approach is as follows: if we want to print numbers from 1 to n, let’s say n=10. Next, this program prints natural numbers from 1 to user-specified value using For Loop. For Example: May 30, 2024 · How to get the first N elements of a list in Python? You can use the slicing operator [:N], where N is the number of elements you want to retrieve from the beginning (index 0) of the given list. This article will explore different approaches to Printing first m multiples of n without using any loop in Python. , n is no longer greater than 0). To achieve the same, we need a loop to iterate the numbers from 1 to N and then the arithmetic operator + to add those items to the total. Feb 20, 2023 · In the above code, the itertools module is used. Oct 20, 2024 · Learn how to write a Python program to print prime numbers from 1 to 100. print (i, end = ' ') Python natural numbers output. Follow the steps mentioned below to implement the Write a Python program to print first 10 natural numbers in reverse order using for loop. Nov 11, 2025 · Given two integers, start and end, the task is to print all positive numbers between the given range, including both endpoints. How to Generate Fibonacci Series in Python for loop is most straightforward and often the most efficient way to generate a Fibonacci series up to a certain number of terms. Method 4: Using Python’s Powerful List Comprehensions List comprehensions offer a clean and concise In this tutorial, you will learn about the Python program for the sum of n numbers using for loop. The map() function passes each string to the int () class and converts it to an integer. Python Program to find Sum of N Natural Numbers using For Loop This program allows users to enter any integer value. Now, let’s come to the topic. Let's explore different methods to compute this sum efficiently. Jun 4, 2022 · Given a natural number n, the task is to write a Python program to first find the sum of first n natural numbers and then print each step as a pattern. x[0:n] Since, 0 is the default value for start parameter, you can avoid specifying it, as shown below. You need to check all numbers from 2 to n-1 (to sqrt (n) actually, but ok, let it be n). Program to calculate sum of first n natural numbers in Python In this program we are not using the natural number addition formula n (n+1)/2, instead we are adding the natural numbers using while loop. Jul 23, 2025 · To print the Fibonacci sequence in Python, we need to generate a series of numbers where each number is the sum of the two preceding ones, starting from 0 and 1. Program to Print First 10 Natural Numbers - In Hindi - Tutorial #13 In this video, I have explained a program with while loop to print 1 to 10 using while loop. Jul 19, 2020 · In this post, we will see how to print first n even natural numbers in python? Even Numbers: Any integer that is positive or negative which can be divided exactly by 2 is an even number. Get first N characters from string using string slicing in Python If x is the given string, then use the following expression to get the substring with the first n characters from the original string. Consider system memory and execution time for very large sequences. In the program we take a user input and convert it to integer data type. Next, it Mathematicians have been fascinated with prime numbers for ages, and Python allows us to check for them in an easy-to-use yet effective way. This Python program for natural numbers allows users to enter any integer value. And the use of built-in function sum(). Jan 2, 2023 · Program to display First N Prime numbers in Python is used to find the Prime Numbers for a given number and print it in the output screen. In this post, you will learn how to write a Python program to print even numbers from 1 to 100, 1 to N, and in a given range using for-loop, while-loop, and function. In this guide, we will explore prime numbers from the basics to advanced applications; we will explore all concepts using clear explanations, examples, and code itself. Use a while loop to iterate until num gets zero. Dec 10, 2016 · This program to print the first n number, introduces you to the usage of looping structures in python. The yield keyword makes fibonacci a generator, outputting one Fibonacci number per loop iteration. If the number of terms is more than 2, we use a while loop to find the next term in the sequence by adding the preceding two terms. ) which is a waste. You'll explore integer, floating-point numbers, and complex numbers and see how perform calculations using Python's arithmetic operators, math functions, and number methods. For each i check if it is a prime or not and update the count of primes found till now. 1 and the number itself N Output Format: 2, 3, 5, 7, 9 Approach: Prime Test: To check whether a number N is prime we can check its divisibility with each number from 2 to N - 1, If it is divisible by any number in this range, we can conclude that N is not a prime Sep 27, 2021 · Learn all the ins and outs of making a program to calculate the first n prime numbers in Python right from scratch, using only built-in Python libraries!Watc Dec 21, 2023 · Here, we will write a Python program to find the sum of square of first N natural numbers. Aug 23, 2012 · First iteration with the while loop: 1 <= 3 : True so my_sum = 0+1 plus count increases by 1 and now count = 2 The 'Return my_sum' is key because it allows my_sum to circle back to the top of the loop as 1 now instead of 0. Write another function that displays the Triangular numbers up to and including n. Here, it can be used to Jun 16, 2021 · In this lesson, you will learn how to calculate the sum and average of the first n natural numbers in Python. In mathematics, the sum of the first n natural numbers is given by the formula n (n+1)/2. In this article, we will explore how to write a Python program to calculate the sum of n numbers using a for loop. May 11, 2024 · Creating a Countdown Timer in JavaScript Enter a number: 5 The sum of the first 5 natural numbers is: 15 ## Real-Life Applications of Finding the Sum of First N Natural Numbers in Python Finding the sum of the first N natural numbers might sound like a simple mathematical exercise, but it has several practical applications. Explore in-depth articles, hands-on projects, and structured learning paths to enhance your coding skills May 6, 2023 · Time Complexity: O (n) where n is the number of elements in the list “test_list”. Jun 16, 2013 · I am trying to write a recursive function that prints from 0 to n, but I have no idea how to do it. Just the number n is good enough. I accidentally made one that prints from n to 0 though: def countdown(n): print(n) if n Sep 6, 2021 · Learn how to calculate the Python sum of squares, including using a custom function, and find out what method is the most efficient! Feb 6, 2025 · Learn how to find the sum of natural numbers in Python using a loop, recursion, and a mathematical formula. One argument is passed in this function which is basically the last index till which we want to print the list. By starting from the first odd number, it automatically skips all even numbers, making it highly efficient. A counter variable is initialized to 1 and incremented by 1 in each iteration until it reaches 5. Apr 10, 2024 · If you need to get the first N digits of a number, click on the following subheading: Get the first N digits of a number in Python We used the str () class to convert the integer to a string so we can access the string at a specific index. If n is divisible by any of the numbers, it is not prime. can someone help? size = 5 def get_numbers(num): numbers Jul 11, 2025 · In this article, we are going to learn how to print numbers within a given interval in Python using simple loops, list comprehensions, and step-based ranges. The numbers having the last digit is 0, 2, 4, 6 or 8 are even numbers. Jul 11, 2025 · The natural numbers can be defined formally by relating them to sets. Also, you will get to know how to calculate the addition and average of user-entered numbers, list of numbers. To create a list of numbers from 1 to N Python provides the range function. Write a Python program to print first 10 even natural numbers using for loop. Here's an example using a for loop: Print 1 to n in Python example Oct 30, 2025 · Explanation: i**3 for i in range (1, n + 1): creates a list of cubes of numbers from 1 to n and then sum () function returns the sum of all the elements inside the list. Next, it is going to print odd numbers from 1 to the user entered a maximum limit value. This is one of my attempts: def printMultiples(n, m): for m in (n,m): print(n, end = ' ') I figured out that, by Sep 26, 2014 · Triangular numbers are numbers of objects that could be arranged in a triangle by making rows, with one more object in each row than in the previous row. You will also go through other ways of printing even numbers in this article. The function will then generate and print the first n even numbers. n = raw_input(&quot;Enter number&quot;) a = 1 The first two terms are 0 and 1.