Factors of 34: 1, 2, 17, 34
Factors of 18: 1, 2, 3, 6, 9, 18
GCF (34, 18) = 2
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The Greatest Common Factor (GCF) is: 8
The greatest common factor is 2
The greatest common factor of 30 and 39 is 3.
The greatest common factor (GCF) is: 5.
There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.