Syntax: PRODUCT(argumentlist)
argumentlist = any combination of numbers, cells, or ranges
PRODUCT multiplies all the numeric elements of the argument list together, ignoring empty and non-numeric values, and returns the product.
Examples:
PRODUCT(6, 5, 8, 2) = 480
PRODUCT(A1..A3) = 25.1327, where A1..A3 = 2, PI(), 4
Excel function: PRODUCT