# How do I find the factorial of a given number?

Oct 1, 2014

The factorial of a number n is denoted as n!

This is the product of all numbers from 1 to n.

So we have n! = n * (n - 1) * (n -2) * … * 2 * 1

So let us take 6!

6! = 6 * 5 * 4 * 3 * 2 * 1

6! = 720