Factors of 45: 1, 3, 5, 9, 15, 45
Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
Factors of 135: 1, 3, 5, 9, 15, 27, 45, 135
GCF (45, 90, 135) = 45
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45 is the greatest common factor of 90 and 135.The GCF is 45.
The greatest common factor (GCF) is: 45
45
The GCF of 45 75 and 135 is 15.
The GCF of 135, 45, and 25 is 5.