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The greatest factor of 15 is 15.

The greatest factor of 20 is 20.

The greatest common factor of 15 and 20 is 5.

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The GCF is 5.

Q: What is the greatest factor of 15 and 20?

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The greatest common factor of 15, 20, and 25 is 5.

The greatest common factor of 15 and 20 is 5.

The Greatest Common Factor of 15, 35, 20 is 5.

The GCF of 15, 20, and 30 is 5.5

The Greatest Common Factor (GCF) is: 5

The Greatest Common Factor of 15, 20 and 25 is 5.

It is: 5

5

It is: 1

It is: 5

The GCF is 5.

The GCF is 1.