Exercise: The Factorial!
Let's create a function that calculates the factorial of a number.
We'll cover the following
Problem Statement #
In this challenge, you must implement the factorial()
function. It takes an integer as a parameter and calculates its factorial. Python does have a built-in factorial function but you’ll be creating your own for practice.
The factorial of a number, n, is its product with all the integers between 0 and n.