The GCD of given numbers is 85.
factors of 85 are : | 1 , 5 , 17 , 85 |
factors of 425 are : | 1 , 5 , 17 , 25 , 85 , 425 |
We see that the Greatest Common Factor = 85.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.