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Anonymous
The factors of 78 are:
1, 2, 3, 6, 13, 26, 39, 78
The factors of 120 are:
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
The common factors are:
1, 2, 3, 6
The Greatest Common Factor:
GCF = 6
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The GCF is 13.The GCF is 13.
The GCF is 6.
Since 39 is a factor of 78, it is automatically the GCF.
The GCF is 2.
The GCF is 30.