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THe GCF of 21 and 60 is 3

21 is 3 * 7

60 is 2 * 2 * 3 * 5

What factors do they have in common? Just 3.

So 3 is the greatest common factor.
The GCF of 21 and 60 is 3.

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9y ago

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Q: What is the greatest common factor of 21 and 60?
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