The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4.
Therefore,
Let us list all the prime factors of
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Thus,
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Let us now list out the common factors and multiply them together.
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Hence, the answer is
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