No. 3 is. The highest common factor is the highest number that will divide into both numbers without leaving a remainder
HCF is 3
The GCF is 9.
It is: 9
9
HCF is the highest common factor of two or more numbers. HCF of 9 and 15 is 3.
The GCF is 3.
It is: 9
The GCF is 9.
18
3
The GCF is 9.
If that's 9 and 18, the GCF is 9.