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The factors of 45 are 1, 3, 5, 9, 15, and 45.

The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.

The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15.

You can also determine the greatest common factor from the prime factors.

The prime factors of 45 are 3, 3, and 5.

The prime factors of 60 are 2, 2, 3, and 5.

The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.

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8y ago

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More answers

GCF(45, 60) = 15.

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Wiki User

8y ago
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The GCF is 15.

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Wiki User

13y ago
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Q: What is the greatest common factor for 45 and 60?
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