No, 32 is a multiple of 16. 16 is a factor of 32.
4
No, 18 is not a factor of 32.
The GCF is 32.
It is 4
The GCF is 16.
8
The GFC of 32 and 40 is 8.
The GCF is 1.
The GCF is 1.
You probably mean GCF (Greatest Common Factor), and the answer is 4.
What is the gfc of 6, 14