Least Common Multiple Calculator

Find the smallest positive multiple shared by a list of integers.

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Input

Enter the integers, and the calculator will return their least common multiple. You will see the result first and the step-by-step solution below.

Input summary

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Step by Step Calculation

LCM

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Calculate first and the full working will appear below automatically.

How to use Least Common Multiple Calculator

Paste or type the integers you want to compare, and the calculator will find the first common multiple they all share.

What this calculator is for

This calculator is for fraction addition, repeating schedules, ratio work, and number theory questions that depend on matching numbers at a common multiple.

Tips

Use integers only; decimals do not belong in standard LCM problems.
The LCM is about multiples, not factors.
If one number is already a multiple of the others, it may be the LCM itself.