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What is the greatest common factor 56 and 81?

Updated: 8/17/2019
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14y ago

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Factor each to primes then, choose the common primes to multiply.
56=2x2x2x7
81=3x3x3x3
Greatest common is the multiplication identity 1.

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14y ago
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Q: What is the greatest common factor 56 and 81?
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