The greatest common factor of 36 , 42 = 6
6
The GCF of 36, 42, and 78 is 6.
The GCF of 36, 42 and 168 is 6.
The GCF is 6.
6
If you mean 18, 42 and 36 then the GCF is 6
The Greatest Common Factor (GCF) is: 6
The GCF is 3.
6the GCF is 6
The GCF is 2.
The GCF is 6.