The factors of 63 are 1,3,7,9,21, and 63
The factors of 56 are 1,2,4,7,8,14,28 and 56.
The factors that are shared are 1 and 7.
So the common factors of 63 and 56 are 1 and 7.
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The common factors of 63 and 56 are: 1, 7
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
GCF(35, 56, 63) = 7.
The GCF of 21, 56, 63, and 84 is 7.
The common factors of 34 and 56 are 1 and 2