This tool calculates the factorial of any number you input.
How to Use the Factorial Calculator
To use the factorial calculator, simply enter a non-negative integer in the input box and click the “Calculate” button. The calculator will then compute the factorial of the entered number and display the result in the results section.
How It Works
The calculator takes the input number, verifies that it is a non-negative integer, and then calculates the factorial of that number using a loop. The factorial of a number n is calculated as the product of all positive integers less than or equal to n (n!). For example, the factorial of 5 (5!) is 1 x 2 x 3 x 4 x 5 = 120.
Limitations
This calculator validates the input to ensure it is a non-negative integer. If the input is invalid, an error message will be displayed. Additionally, very large numbers will result in very high computational times and larger results which may not be easily handled by standard JavaScript operations.