public static double Factorial(
	int n
)

Public Shared Function Factorial ( _
	n As Integer _
) As Double

public:
static double Factorial(
	int n
)

Return Value

The factorial of an integer n is the product of all integers from 1 to n.

Because n! becomes too large to be representable as a double-precision floating point number for quite moderate values of n, you may find it convenient to use the LogFactorial(Int32) in order to avoid overflow when computing expression in which large factorials will cancel with other large factors.