Factorials Table

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1 Factorial Definition

2 Factorial Examples

3 Double Factorial Definition

4 Double Factorial Examples

5 Free Download of Factorials Table

6 More Free Math Reference Charts

Looking for a factorials table to reference for quick calculations? This free printable table of factorials features the factorial and double factorial values for each of the numbers from 0-15.

Factorial Definition

The factorial of a non-negative integer, n, denoted by n!, is the product of all positive integers less than or equal to n.

Factorial Examples

For example, 5! is the product of all positive integers less than or equal to 5.

5! = 5 * 4 * 3 * 2 * 1 = 120

4! = 4 * 3 * 2 * 1 = 24

3! = 3 * 2 * 1 = 6

2! = 2 * 1 = 2

1! = 1

0! = 1

Double Factorial Definition

The double factorial of a non-negative integer, n, denoted by n!!, is the product of all positive integers less than or equal to n that have the same parity (even or odd) as n.

Double Factorial Examples

For example, 5!! is the product of all positive odd integers less than or equal to 5.

5!! = 5 * 3 * 1 = 15

4!! = 4 * 2 = 8

3!! = 3 * 1 = 3

2!! = 2

Free Download of Factorials Table

I have formatted these values for the factorial and double factorial of each integer between 0 and 15 as an editable WORD document and a PDF file. I hope you find this printable factorial table to be very useful!