The factors of 78 are:
1, 2, 3, 6, 13, 26, 39, 78
The factors of 91 are:
1, 7, 13, 91
The factors of 156 are:
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
The common factors are:
1, 13
The Greatest Common Factor:
GCF = 13
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The greatest common factor of the numbers 78, 91 and 156 is 13.
The factors of 156 are: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, and 156
Factors of 78: 1, 2, 3, 6, 13, 26, 39, 78.Factors of 28: 1, 2, 4, 7, 14, 28.GCF (78, 28) = 2
The common factors of 52 and 78 are 1, 2, 13 and 26.
Factors of 39: 1, 3, 13, 39.Factors of 52: 1, 2, 4, 13, 26, 52.Factors of 78: 1, 2, 3, 6, 13, 26, 39, 78.GCF (39, 52, 78) = 13