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Math Help > Basic Math > Factorials, Consecutive Integer Products
n!, which we read "n factorial", is the product of all the positive integers that don't exceed n. 0! is defined as 1.
Table of Factorials -- a table of the first 100 factorials
Product of Consecutive Integers -- a polynomial formula for the product of consecutive integers, and a method using Stirling's Approximation
Digit Frequency -- a table of the frequencies of each digit (base 10) of the factorials from 1 to 500
Mathworld: Factorial Mathworld: Stirling's Approximation
Mathworld: Factorial
Mathworld: Stirling's Approximation
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The webmaster and author of this Math Help site is Graeme McRae.