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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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9y ago

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More answers

The greatest common factor of 79 and 58 is 1.

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Wiki User

14y ago
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The GCF is: 2

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Wiki User

12y ago
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Q: What is the greatest common factor of 79 and 58?
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