The GCF is 1.
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Common factors of 49 and 77 are: 1 and 7.
The greatest common factor of the numbers 55, 77 and 143 is 11.Common factors of 55: 1, 5, 11, and 55.Common factors of 77: 1, 7, 11, and 77.Common factors of 143: 1, 11, 13, and 143.So the greatest common factor is 11.
The GCF is 7.
The GCF is 7.
The factors of 55 are:1, 5, 11, 55The factors of 77 are:1, 7, 11, 77The common factors are:1, 11The Greatest Common Factor (GCF) is:11