Factors of 3: 1, 3
Factors of 9: 1, 3, 9
Factors of 27: 1, 3, 9, 27
GCF (3, 9, 27) = 3
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Since 3 is a factor of 27, it is automatically the GCF of 3 and 27
The greatest common factor (GCF) of 27 and 33 is 3
The greatest common factor of 75 and 27 is 3.
3 is the greatest common factor of 21, 27, and 51The GCF is 3.
13 is a prime number & 27 = 3*3*3*1, so the greatest common factor of 13 and 27 would be 1, which is the only common factor.