The GCF is 15.
The HCF of 30 and 105 is 15.
25
HCF of 735 and 1050 is 105.
The GCF is 25.
The GCF is 105.
7
105
105
The hcf is 15.
The GCF is 105.
The GCF is 15.
It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!