The GCF of 912 and 18 is 6.
The GCF of 9, 12 and 18 is 3.
The GCF is 12.
The GCF is 1.
It is: 24
The GCF is 3.
The GCF is 18.
The GCF is 18.
The GCF is 18.
The GCF for 612 and 18 is 18
The GCF is 18.
It is: 6
Not sure what an LMC is. The LCM (912, 18) = 2736.
It would be 18.