3 is the GCF of 123 and 81. Divided into each, you are left with 41 and 27 respectively. There are no further common factors aside from 1.
Greatest common factor of 81 and 123 is 3.
The GCF is 3.
gcf of 37 and 81 is 1.
The GCF of 27 and 81 is 27. And their LCM is 81.
The GCF is 9.
The GCF is 1.
The GCF is 1.
The GCF is 27.
The GCF is 9.
The GCF is 27.
The GCF of 6 and 81 is 3.
The GCF is 2.