How to Code Factorial in Python using Recursion | Python Programming Tutorial for Beginners

Published: 04 July 2019
on channel: Apptato Trivia & Word Games

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How to Code Factorial in Python using Recursion | Python Programming Tutorial for Beginners

This video will show you how to Code Factorial in Python using Recursion.

Factorial = A mathematical operation defined as follows:
A factorial of n (denoted by n!) is the product of all positive integers less than or equal to n.
n! = n x (n-1) x (n-2) x (n-3) x ... x 3 x 2 x 1
For example: 5! = 5 x 4 x 3 x 2 x 1 = 120
Special Case: 0! = 1

Approach:
1) Iterative Strategy: Create a loop that will find the product of n * n-1 * n-2 * ... * 2 * 1
2) Recursive Strategy: Multiply n by the factorial of (n-1) until it reaches n = 0

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