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Find GCF of three numbers

Find greatest common factor of three numbers

This math skill teaches how to find the greatest common factor (GCF) of three numbers by first finding all their factors, identifying the common factors, and then multiplying these shared factors to find the GCF.

Learn find GCF of three numbers

Teaching Transcript

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Find the greatest common factor of these 3 numbers

First let's factor all the numbers

Now we can identify shared factors. Two 2's are shared.

Our greatest common factor is found by multiplying those 2's to get a GCF of 4

Skill Practice

Find greatest common factor of three numbers

Test your understanding of find GCF of three numbers by practicing it! Work through the below exercises to use it in practice.