FACTDOUBLE Function Explained

The FACTDOUBLE Function in Microsoft Excel returns the double factorial of a number. It takes a single argument, which is a non-negative number, and returns the product of all the integers from 1 up to the specified number, skipping every other integer. For example, FACTDOUBLE(5) returns 15, which is the product of 1, 3, and 5.

FACTDOUBLE Function Syntax

FACTDOUBLE(number)

  • number: The number for which you want to calculate the double factorial.