FACT function

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

Formula	Description (Result)
=FACT(5)	Factorial of 5, or 1*2*3*4*5 (120)
=FACT(1.9)	Factorial of the integer of 1.9 (1)
=FACT(0)	Factorial of 0 (1)
=FACT(-1)	Negative numbers cause an error value (#NUM!)
=FACT(1)	Factorial of 1 (1)