LCM Calculator

Find the least common multiple and greatest common factor for two or more integers.

Find LCM and GCF for multiple integers.

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Enter 2 to 12 signed integers, separated by spaces or commas.
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How to use LCM Calculator

Enter integers separated by spaces or commas. Negative values use their absolute values; an input of zero makes the LCM zero.

Private, local processing

Your input and results are not uploaded or stored. They remain in this browser tab.

Frequently asked questions

What does LCM Calculator do?

Find the least common multiple and greatest common factor for two or more integers.

Is my data uploaded?

Your input and results are not uploaded or stored. They remain in this browser tab.

What should I check when using LCM Calculator?

Enter integers separated by spaces or commas. Negative values use their absolute values; an input of zero makes the LCM zero.