18 and 42's highest common factor is six.
The greatest common factor of 18 21 and 42 is 3.
The greatest common factor of 42 , 18 = 6
The Greatest Common Factor of 42 and 18 is 6.
The greatest common factor (GCF) is: 6
6
If you mean 18, 42 and 36 then the GCF is 6
The GCF of 18, 42 and 60 is 6.
The GCF is 6.
It is: 3
6
It is: 6