The GCF of 1230 and 18 is 6
6
It is: 3
Since 18 is a factor of 72, it is automatically the GCF.
6.
The GCF is 18.
9 and 18
The GCF is 3.
The GCF is 2.
The greatest common factor of 18 and 24 is 6.
The greatest common factor of 18 21 and 42 is 3.
18
Since 18 is a factor of 90 and it is the largest factor of itself, the greatest common factor of 18 and 90 is 18.Since 18 is a factor of 90, it is automatically the GCF.