Factorial Calculator
MathCalculate the factorial of any non-negative integer.
n! (Factorial)
The product of all positive integers up to and including n.
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Odeh Ahwal0people find this calculator helpful
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Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Math calculators
Frequently Asked Questions
What is a factorial?
A factorial (written n!) is the product of all positive integers from 1 up to n. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120.
What is 0 factorial?
By mathematical convention, 0! equals 1, not 0. This is a defined rule used to make formulas in combinatorics and probability work correctly.
Why does the calculator limit input to 170?
Factorials grow extremely fast — 170! is already close to the largest number standard computer arithmetic can represent accurately. Beyond this, results lose precision or overflow.
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