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.
The GCF is 2.
The GCF is 3.
9 and 18
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.