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).

Here, the number whose factorial is to be found is stored in num, and we check if the number is negative, zero or positive using if...elif...else statement. If the number is positive, we use for loop and range() function to calculate the factorial.

Oct 15, 2020 · def factorial(n): result = 1 for i in range (1, n+1): result *= i return result Explanation: The factorial of a number is simply to multiply all whole numbers starting with n down to 1.

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.

for i in range(1,n): i=i+1. result=result*i. return result. # Initial Number. result = 1. # In factorial range must be started by 1. for num in range(1, n): # the main point is that the result should be . # multiply a number grater than itself. result = result * (num + 1) return result.

Jan 6, 2022 · The easiest way is to use math.factorial (available in Python 2.6 and above): If you want/have to write it yourself, you can use an iterative approach: fact = 1. for num in range(2, n + 1): fact *= num. return fact. or a recursive approach: if n < 2: return 1. else: return n * factorial(n-1)

This Python program finds the factorial of a number using a loop. Definition of the Factorial Function? The factorial function is a mathematics formula represented by the exclamation mark "!".

Python Program to Find Factorial of a Number. Factorial of a number can be calculated in various ways. These include using a for loop, a recursive function, or a while loop. Each method has its advantages, and this tutorial covers all three approaches along with additional cases.

1 day ago · In mathematics, the factorial of a non - negative integer `n`, denoted by `n!`, is the product of all positive integers less than or equal to `n`. For example, `5! = 5 × 4 × 3 × 2 × 1 = 120`. In Python, there are several ways to calculate factorials, each with its own advantages and use - cases. This blog post will explore these methods in …

Mar 31, 2025 · Learn several ways to find the factorial of a number in Python with examples, ranging from looping techniques to more concise recursive implementations and the utilization of built-in library functions.