The GCF is 10.
The GCF is 2.
The GCF is 2.
The GCF is 2
I think it's five. Im pretty confident though. Hope I helped. Answer: 10 is the gcf of 10 and 40.
The GCF is 5.
The GCF is 2.
The GCF is 10.
The GCF is 10.
The GCF is 2.
It is 40
The GCF is 1.
The GCF is 2.