Below is a factorial calculator, which will calculate the factorial of a number n. Enter a positive integer to return the factorial.
What is a Factorial?
A factorial is the product of a number and all positive integers that are less than that number.
Formula for Factorials
The formula for a factorial is:
Example Factorial Calculation
For example, let's say you want to take the factorial of 7. Here's how it works:
Using the Factorial Calculator
In the text box at the top, enter the Number n you'd like to compute the factorial for, then click the Compute Factorial button. We'll do the math and put the result in the Factorial box.
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