1,3 and 9 are common factors.
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The common factors of 36 and 63 are 1, 3 and 9
35 = 5 x 7 63 = 9 x 7 '7' is the only common factor.
Just 1.
The factors of 63 are: 1, 3, 7, 9, 21, 63The factors of 112 are: 1, 2, 4, 7, 8, 14, 16, 28, 56, 112The factors of 175 are: 1, 5, 7, 25, 35, 175The common factors are: 1, 7
The GCF is 63.