The GCF is 9.
27/153 = 3/17
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The GCF is 27.
The Greatest Common Factor (GCF) of 27, 81, and 54 is 27.
81, as it is the highest factor of 81 (81 and 1) and is also a factor of 162 (81 and 2)
The result of dividing 27 and 30 is a fraction. The concept of GCF is not relevant for fractions.
The greatest common factor for the numbers 27 and 81 are 27.