The GCD of given numbers is 4.
factors of 12 are : | 1 , 2 , 3 , 4 , 6 , 12 |
factors of 8 are : | 1 , 2 , 4 , 8 |
We see that the Greatest Common Factor = 4.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.