What is 12! (12 Factorial)?
12! (12 factorial) equals 479,001,600.
How to use this tool
- Enter n in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your n! and the full breakdown beneath it.
Calculate 12 factorial instantly — 12! equals 479,001,600.
Frequently asked questions
- What is a factorial?
- The factorial of n (written n!) is the product of all positive integers up to n. By definition, 0! = 1.