0
Anonymous
It is: 9
Wiki User
If you mean: 18, 27 and 36 then it is 9
The GCF is 18.
The GCF is 36.
27
It is: 27
3
The GCF is 9.
The GCF is 4.
The GCF is 12.
The hcf of 12 & 36 is 12
36
It is 36
The HCF of both numbers is 9 and 9 times 9 = 81