what id the GCF for 81 and 64
145 because 81 plus 64 is 145 145 plus 209
Well if you look at 81, the factors of 81 are 1,3,9,27, and 81. And the factors of 64 are 1,2,4,8,16,32, and 64. They do not have a single common factor. So the GCF for 81 and 64 would be 1.
