Question

What does the "!" mean in math?
for example, 5! = 120 and 6! = 720

Answer 1

Factorial, in mathematics, the product of all positive integers less than or equal to a given positive integer and denoted by that integer and an exclamation point.

Answer 2

Factorial

Explanation:

! This sign is factorial sign and when solving factorial, you multiply given numbers in descending order.

This is how answers from the examples where derived;

E.g 5! = 5x4x3x2x1= 120

6! = 6x5x4x3x2x1 = 720