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The prime factorization of 124 is 2 * 2 * 31 = 22 * 31.

The prime factorization of 24 is 2 * 2 * 2 * 3 = 23 * 3.

The GCF contains all prime factors contained in both numbers. We find 22 is in both, so the GCF is 4.

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13y ago

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