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**Worksheets for the greatest common factor (GFC) and least common multiple (LCM) of numbers**

You can create free printable worksheets for finding the greatest common factor (GFC) and least common multiple (LCM) of up to 6 different numbers. The worksheets are customizable with lots of options: you can choose the number ranges for the GCF and LCM separately, the number of problems, workspace, font size, and border. You can also make worksheets with mixed problems, including some for both GCF and LCM.

**NOTE:** The largest number allowed for GCF is 1,000,000 and for LCM 10,000 to be safe (to reduce the server load).

See below quick links for some common worksheet types:

Find the greatest common factor of 2 numbers between 1 and 50 (easy)

Find the greatest common factor of 2 numbers between 1 and 100

Find the greatest common factor of 3 numbers between 1 and 100

Find the least common multiple of 2 numbers between 2 and 30

Find the least common multiple of 2 numbers between 2 and 50

Find the least common multiple of 3 numbers between 2 and 30

## Worksheet Generator - GCF / LCM | ||||||

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**Math Mammoth Multiplication & Division 3**

A self-teaching worktext for 5th grade that covers multi-digit multiplication, long division, problem solving, simple equations, ratios, divisibility, and factoring.

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