FACT

Syntax: FACT(N)

N = a numeric value

FACT returns N! the factorial of N. The formula is given by:

$$N! = \left\{ \begin{array}{ll} N \times (N-1)! & \mbox{for $N>0$} \\ 1 & \mbox{for $N=0$} \\ \end{array} \right .$$

Examples:

FACT(4) = 24, because 4! = 4 * 3 * 2 * 1

FACT(C13) = 3628800, where C13 = 10

Excel function: FACT