online factorial calculator.
How to use :-Enter the non negative integer number (n) and press the = button:
A factorial is a function that multiplies a number by every number below it. For example 5!= 5*4*3*2*1=120. The function is used, among other things, to find the number of way ��n�� objects can be arranged. ... 0 factorial is a definition: 0!
The factorial formula is:
n! = 1⋅2⋅3⋅4⋅...⋅n
For example:
3! = 1⋅2⋅3 = 6
4! = 1⋅2⋅3⋅4 = 24
5! = 1⋅2⋅3⋅4⋅5 = 120