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The GCF of 12 and 54 is 6. To find the GCF, write the prime factorizations of each number.

The prime factorization of 12 is 2*2*3
The prime factorization of 54 is 2*3*3*3
The factors in common are 2*3 = 6, so that is the GCF.

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8y ago

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