LCM Calculator
Find the least common multiple of two numbers
100% private. Your files and inputs never leave your device — everything runs locally in your browser.
How to Use LCM Calculator
Find the least common multiple of two numbers. No signup, no uploads, no watermarks.
- 1
Enter your numbers in the input fields.
- 2
Choose the calculation options or frequency.
- 3
The result updates instantly as you type.
- 4
Review the breakdown, chart, or schedule, and copy the answer.
Why choose LCM Calculator?
- No uploads — your files never leave your device.
- Free forever with no signup, no watermarks, and no limits.
- Works on any device with a modern browser — no installs.
- Fast, private, and built for getting the job done in seconds.
Frequently Asked Questions
What is the least common multiple?▾
The LCM of two numbers is the smallest positive number that is a multiple of both. For 4 and 6, the common multiples are 12, 24, 36, … so the LCM is 12.
How is LCM related to GCD?▾
For any two integers, a × b = LCM(a, b) × GCD(a, b). So once you know one, you can find the other: LCM = a × b ÷ GCD.
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