Factorial Calculator
Calculate the factorial of any non-negative integer up to 170 with step-by-step multiplication display.
How to Use Factorial Calculator
The Factorial Calculator computes n! (n factorial) for any non-negative integer up to 170. It shows the complete step-by-step multiplication so you can verify the calculation. Factorial is fundamental in combinatorics, probability, and algebra — used to calculate permutations, combinations, and in Taylor series expansions. Enter a number and instantly see the result along with the full multiplication chain. The tool uses BigInt for precise calculations of very large numbers. Perfect for math students, programmers, and anyone working with combinatorial problems.
Step-by-Step Instructions
- Enter a non-negative integer (0 to 170)
- Click Calculate Factorial
- View the result and step-by-step multiplication
- Copy the result to use elsewhere
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