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What is the greatest common factor of 15 and 28
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What is the greatest common factor of 15 and 28

User Lavavrik
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2 Answers

4 votes
The answer to it is 1
User Maulik Hirani
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Prime factorization of 15 is 3·5

Prime factorization of 28 is 2·2·7

As you can see 15 and 28 have no common factor so greatest common factor would be 1.
User Jorge Valois
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