56: 2, 7
81: 3
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The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, and 56.The prime factors of 56 are: 2 and 7.The factors of 81 are: 1, 3, 9, 27, and 81.The only prime factor of 81 is: 3.
The GCF is 1.The prime factors of 56 are 2,2,2 and 7The prime factors of 81 are 3,3,3 and 3The GCF is 1.
56 has two prime factors: 2 and 7.
the prime factors are 2,2,2,7
The prime factors of 56 are 2 and 7 are 2×2×2×7, or 2^3×7.