Two or more numbers are needed to work out the highest common factor
Ten and 126's highest common factor is two.
The greatest common factor of 30 and 126 is 6 .
It is: 18
It is: 42
7
The greatest common factor of 91 and 126 is 7.
The GCF is 9.
The HCF is: 7
18
The GCF is 1.
The GCF is 21.
The Highest Common Factor is 126