LCM & GCD Calculator
Enter two or more numbers to find their LCM and GCD.
LCM (Least Common Multiple)
GCD (Greatest Common Divisor)
Free to useNo software to install — works in any modern browser.
No signup neededOpen the tool and start straight away.
Runs in your browserNothing you enter is sent to a server.
Works on mobileSame tool on your phone, tablet or desktop.
How it works
- Enter — type or paste your values or text.
- Get the result — it is worked out in your browser.
- Adjust — change the inputs to compare, or copy the result.
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About LCM & GCD Calculator
Enter two or more numbers to instantly find both their LCM and GCD together — the two calculations are closely related and usually needed side by side, so this covers both in one place instead of two separate tools.
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