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3 is the greatest number which divides 9, 12 and 15.

Factors of 9: 1, 3 and 9.

Factors of 12: 1, 2, 3, 4, 6 and 12.

Factors of 15: 1, 3, 5 and 15.

So, G.C.F. is 3.

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14y ago

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More answers

The GCF is 3.

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9y ago
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3

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7y ago
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It is: 3

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7y ago
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Q: What is the GCF of the numbers 9 12 and 15?
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