The GCF will always be a positive number.
1 is the greatest common factor of 7 and 8. There are no others.
36 and 72, among others.
8 and 16, among others.
5 and 10, among others.
4 is the GCF of 4 and 8, among others.
1 is the greatest common factor of 7 and 8. There are no others.
5 and 10, among others.
8 and 16, among others.
9 and 18, among others.
19 and 38, among others.
4 and 9, among others.
8 and 16, among others.
4 and 8, among others.
5 and 10 do, among others.
5 and 10, among others.
16 and 32, among others.
5 and 10, among others.