The GCF is 175.
30 is the hcf of 150 and 240.
hcf stands for highest common factor, referring to factors that two numbers have in common, so it does not make much sense to ask for the hcf of a single number.However, you could ask,"what is the hcf of 175 and 175 ", which , of course, is 175.
The GCF is 25.
25
It is 25
175
175 = 1.166666...% of 150
The GCF is 175.
The GCF is 10.
The GCF is 7.
The GCF is 25.