Factorial

Tags: Loops Basics

Credit: CodingChallenge

Description:

Write a function that takes a positive integer N and returns its factorial calculated using a for loop. This problem is designed to help you practice using for loops for calculations. The function should accept one parameter and return the factorial.

Constraints:

• The input will be a positive integer greater than or equal to zero.
• The factorial of 0 is 1.
• The function should return an integer representing the factorial of N.

Example:

• Input: 5
• Output: 120 // Explanation: 5! = 5 * 4 * 3 * 2 * 1 = 120