Means x factorial:
x! = x * (x-1) * (x-2)*....* 2 * 1
Eg:
6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
3! = 3 x 2 x 1 = 6
Special cases and notes:
--> 0! = 1
--> Cant get factorials of a negative number or fractions, must be positive whole numbers
Means x factorial:
x! = x * (x-1) * (x-2)*....* 2 * 1
Eg:
6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
3! = 3 x 2 x 1 = 6
Special cases and notes:
--> 0! = 1
--> Cant get factorials of a negative number or fractions, must be positive whole numbers