Use the following factor trees to determine the answer
35
5, 7
and
63
7, 9
7, 3, 3
7 is the common factor of 35 and 63
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The GCF is 9.
The factors of 45 are:1, 3, 5, 9, 15, 45The factors of 81 are:1, 3, 9, 27, 81The common factors are:1, 3, 9
The common factors are: 1, 3, 9.
The factors of 45 are: 1, 3, 5, 9, 15, 45The factors of 81 are: 1, 3, 9, 27, 81The common factors are: 1, 3, 9The Greatest Common Factor (GCF) is: 9
The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56 The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 81 are: 1, 3, 9, 27, 81