What is 5! (5 Factorial)?
5! (5 factorial) equals 120.
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.
5 factorial (5!) is 1 × 2 × 3 × 4 × 5 = 120.
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.