To use a while loop to find the factorial of a number in Python: Ask a number input. Initialize the result to 1. Start a loop where you multiply the result by the target number. Reduce one from the target number in each iteration. End the loop once the target number reaches 1. …

Does anybody know how you can write a factorial in a while loop? I can make it in an if / elif else statement: num = ... print("must be positive") print("factorial = 1") for i in range(1,num + 1): factorial = factorial*i. print(num, factorial) But I want to do this with a while loop (no function). A for loop can be rewritten as a while loop.

Apr 8, 2025 · The factorial of a number is the product of all positive integers less than or equal to that number. For example, the factorial of 5 (denoted as 5!) is 5 × 4 × 3 × 2 × 1 = 120. In Python, we can calculate the factorial of a number using various methods, such as loops, recursion, built-in functions, and other approaches.

Sep 12, 2022 · Learn to Factorial of a Number in Python Using While Loop. Get a Sample Code with an Explanation and Output for better understanding.

Here you will get Python program to find factorial of number using for and while loop. The Factorial of a number is calculated by multiplying it with all the numbers below it starting from 1. For example, the factorial of 4 is 24 (1 x 2 x 3 x 4). The below program takes a number from the user as input and finds its factorial. fac = fac * i. Output.

Python - Find Factorial - In this tutorial, we shall learn how to find the factorial of a given number using, for loop, recursion function, while loop, etc. Example programs for each of the process is given.

Dec 27, 2022 · Python Program to find Factorial of a Number is used to calculate the factorial of a given number using While loop and prints the value in the output screen.

Here is code to find the factorial of a given number using a while loop in Python: fact *= num. num -= 1. # multiply the factorial variable by the current number. fact *= num. # decrement the current number by 1. num -= 1.

In this article I will discuss how to calculate factorial in python, using for and while loops. print("Factorial is not defined for negative numbers.") factorial=...

Dec 16, 2014 · def factorial (num): if num == 0: return 1 else: return num * factorial(num - 1) print factorial (5)