Fact function in Excel returns the factorial of a given number. The Factorial of a number, N, is given by the product – N * (N-1) *(N-2) …3 * 2 * 1.
Syntax of FACT Function in Excel
Where number is the Positive number that you want to calculate the Factorial of.
Example of FACT Function in Excel
#NUM! Error occurs if the supplied number argument is negative.