Factorial Calculator
Calculate factorials such as 5!, combine them with fractions and powers, and evaluate expressions in an online scientific calculator.
Factorial calculator for n! and scientific expressions
Use this factorial calculator to calculate n! and combine factorials with arithmetic, fractions, and powers.
Factorials are common in permutations, combinations, probability, and discrete math.
Learn the concept
Try these examples
5!\frac{6!}{3!}4!+3!
Quick reference
- Factorial button for n! input.
- Factorials mixed with fractions and powers.
- Safe expression parsing without eval.
FAQ
How do I type a factorial?
Enter a number or expression and press the ! button.
What is 5 factorial?
5! equals 5 x 4 x 3 x 2 x 1, which is 120.
Sources and review
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