FACT

Returns the factorial of a number. The factorial of a number is equal to 1*2*3*...* number.

Syntax

FACT(number)

Number   is the nonnegative number you want the factorial of. If number is not an integer, it is truncated.

Examples

FACT(1) equals 1

FACT(1.9) equals FACT(1) equals 1

FACT(0) equals 1

FACT(-1) equals #NUM!

FACT(5) equals 1*2*3*4*5 equals 120