The greatest common factor of 15 and 37 is 1, because 37 is prime.
The GCF is 1.
gcf of 37 and 81 is 1.
The GCF is 37.
The GCF is 37.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
-56
1 37 , 12THE GCF is 1.
The GCF is 1.
Since 37 is a factor of 74, it is automatically the GCF.