Factorial Calculator
Compute the factorial of any non-negative integer, the product of all positive integers up to that number, common in probability.
10! =
3,628,800
7 digits
About the Factorial Calculator
A factorial calculator computes the factorial of any non-negative integer, the product of all positive integers up to that number, commonly used in probability and combinatorics.
How to use
1
Enter a non-negative integer.
2
View its calculated factorial.
3
Try different values to see how quickly factorials grow.
Frequently asked questions
What is the factorial of 0?
By mathematical convention, 0 factorial is defined as 1.
Why do factorials grow so quickly?
Since each factorial multiplies by every smaller positive integer, the value grows much faster than simple exponential growth as the input number increases.
Explore more tools in the Educational category.