No, the only common factors are 1 and 3.
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The factors of 81 are: 1, 3, 9, 27, 81. The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30.
The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30 The factors of 81 are: 1, 3, 9, 27, 81 The common factors are: 1, 3
Factors of 27: 1, 3, 9, 27Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30GCF (27, 30) = 3
Factors of 7: 1, 7 Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
27 has four factors.