The GCF is 3.
It is: 3
The greatest common factor of 40 , 81 = 1
The greatest common factor of 81 and 117 is 9.
The greatest common factor of 56 and 81 is 1.
The greatest common factor of 21 and 81 is 3.
The greatest common factor of 81 and 189 is 27.
The greatest common factor of 52 and 81 is 1
The GCF of 53 and 81 is 1.
The Greatest Common Factor of 81, 21, and 14 is 1.
The greatest common factor of 81 , 90 , 96 = 3
The greatest common factor of 81 and 64 is 1.