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LCM & GCF

Least Common Multiple (LCM)

of two or more numbers is the smallest number, other than zero, that is a multiple of each number.

Greatest Common Factor (GCF)

of two or more numbers is the largest number that is a factor of each number.

How to Calculate Them

There are a few different methods we can use to find both the LCM and the GCF. We will go over each. Pick the way that makes most sense to you—in the end you should get the same answer regardless of which one you choose.

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