The greatest (highest) common factor of 28 and 42 is 14.The GCF is 14.
8
4 and 8
9 and 126
The GCF is 3.
It is: 1
7
The GCF is 2.
The GCF is 2.
6
It is: 2
3
Since 14 is a factor of 28, it is automatically the GCF.
Since 14 is a factor of 42, it is automatically the GCF.
The GCF is 2.
The GCF is 2.
The GCF is 6.