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The GCF 21 and 58 is 1.

21 = 3x7

58 = 2*29

There no common factors, so the GCF is 1. We can say that these two numbers are "relatively prime".

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The greatest common factor of 79 and 58 is 1.

The GCF is: 2

Q: What is the greatest common factor of 79 and 58?

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The greatest common factor of 13 and 79 is 1.

The GCF is 1.

The GCF is 1.

The GCF is 1.

The GCF is 7.

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The greatest common factor of 13 and 79 is 1.

The Greatest Common Factor (GCF) is: 1

The Greatest Common Factor (GCF) is: 1

The greatest factor of 79 is 79.

It is 1

1

It is: 1

1, since 79 is prime.

The GCF of 79 and 111 is 1.