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The factors of 20 are 1, 2, 4, 5, 10, and 20.

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.

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

The factors that are common to 20, 24, and 12 are 1, 2, and 4.

The greatest one is 4 .

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9y ago
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9y ago

The GCF is 4.

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Q: What is the gcf of 20 and 24 and 12?
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