This is ancient version of calculla.com

left here for archival purposes.

All calculators should still work, but you can't be sure.

We also don't update them anymore, so expect outdated info.

We suggest to move to new version of Calculla.com

by clicking the link: LCM

left here for archival purposes.

All calculators should still work, but you can't be sure.

We also don't update them anymore, so expect outdated info.

We suggest to move to new version of Calculla.com

by clicking the link: LCM

Least Common Multiple (LCM) calculator - finds LCM for up to three given numbers and shows process of dividing by primes as for school-like interpretation.

Some facts

**Least common multiple**is the smallest positive integer that is a multiple of two or more numbers. This means also, it can be divided by these numbers without a reminder.**Least common multiple (LCM)**is sometimes called**lowest common multiple**or**smallest common multiple****LCM**is mainly useful as**lowest common denominator**for fractions.

How to use this tool

To search for **greatest common divisor** or **least common multiplier** enter your numbers into fields below.

You can enter 2 or 3 integer numbers. If you need only 2 of them - just leave 3rd field empty!

All numbers should be non-zero integer (so you can use negative numbers).

You can enter 2 or 3 integer numbers. If you need only 2 of them - just leave 3rd field empty!

All numbers should be non-zero integer (so you can use negative numbers).

Enter number #1 | Enter number #2 | Enter number #3 optional (leave empty) |

LCM prime factors:

Greatest Common Divisor (GCD):

GCD prime factors:

Processing time (performance): ms

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