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Factors of 18: 1, 2, 3, 6, 9, 18.

Factors of 45: 1, 3, 5, 9, 15, 45.

Factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.

GCF (18, 45, 72) = 9

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11y ago
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13y ago

greatest common factor of 18.72.180 is 18.

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9y ago

The GCF is 18.

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7y ago

It is 9

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Q: What is the greatest common factor of 18 45 72?
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