Factors of 6: 1, 2, 3, and 6.
Factors of 18: 1, 2, 3, 6, 9, and 18.
Factors of 10: 1, 2, 5, and 10.
These three numbers have factors that are common in all of them. Those common factors are 1 and 2. The greatest factor they have in common is 2.
GCF(10, 6, 18) = 2.
The GCF is 2.
Since 10 is a factor of 30, it is automatically the GCF.
The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF is 6.
9 and 6 have an LCM of 18 and a GCF of 3.
The GCF is 6.