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The factorial of a number is the product of all the whole numbers, except zero, that are less than or equal to that number.
832.
7 factorial
7 factorial, or 5,040.
A factorial of a positive integer n, is the product of all positive integers less than or equal to n. For example the factorial of 5 is: 5! = 5 x 4 x 3 x 2 x 1 = 120 0! is a special case that is explicitly defined to be 1. A factorial is denoted by n! (5! for this example)