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Least Common Multiple Calculator

Find the least common multiple of two positive integers.

How it works

The least common multiple is the smallest positive number divisible by both inputs.

Formula and assumptions

This calculator uses the values and units shown above. Results are rounded for display. Confirm inputs and assumptions before relying on a result for academic, engineering or other important decisions.

Example

Try the sample values, calculate, then change one input at a time to see how the result changes.

Frequently asked questions

Are results exact? They depend on the selected formula, input values and rounding. Special cases are reported when possible.

Does this replace professional software? No. Independently verify results for safety-critical or formal work.

For educational and general information. Report an issue.

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