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The greatest common factor for 12, 18, and 30 is 6.

The factors of 12 are 1, 2, 3, 4, 6, and 12

The factors of 18 are 1, 2, 3, 6, 9, and 18

The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30

Thus, GCF (12, 18, 30) = 6

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8y ago

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