Overview
Common Math Functions is an easy and free online tool that runs in your browser.
Factorial, nPr, nCr, GCD/LCM, prime test — easy and free
Free online Common Math Functions calculator. Compute factorials, permutations (nPr), combinations (nCr), GCD, LCM, and perform prime number tests.
Math Tools
This browser-based tool is designed to be fast, easy to use, and private by default. Open the tool, adjust the settings, and get results instantly without creating an account or sending files to a server.
Everything runs locally in the browser whenever possible, which reduces friction for users and makes the page more useful as a direct-answer landing page from search.
The following topics are closely related to this tool and help explain what it is for:
Yes, this tool is 100% free to use with no hidden costs, trials, or subscriptions required.
No registration or sign-up required. Simply use the tool directly in your browser.
No, all processing happens locally in your browser. Your data never leaves your device, ensuring complete privacy.