Factors of 231: 1, 3, 7, 11, 21, 33, 77, 231
Factors of 55: 1, 5, 11, 55
GCF (231, 55) = 11
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The greatest common factor of the numbers 132 and 55 is 11.
greatest common factor of 385 and 715 is 55.
Since 55 is a factor of 110, it is automatically the GCF.
The GCF is 5.
11