What exactly is a 'Factorial'? Give Brainlist to the finest answer

hi

It's a kind of multiplication where you do a serie of multiplication starting from your number until one.   It written with a  "!" after the number.

ex :    3! =  3*2*1  = 6

      10! = 10*9*8*7**6*5*4*3*2*1 = 2628800

answer is below

Explanation:

A factorial multiplies a number by the numbers below it. A factorial also acts as a function.

An example of a factorial can be:

Factorial of zero is defined as 1.

idk

step-by-step explanation:

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