Since 9 is a factor of 27, it is automatically the GCF.
9
22
3
It is: 3
The GCF of 12 & 27 is... 3
The GCF is 1.
The GCF is 1.
3
Since 27 is a factor of 81, it is automatically the GCF.It is: 27
GCF factoring 27=3*3*3 72=3*3*8 GCF=3*3=9
The GCF is 1.
It is: 3