The GCD of given numbers is 5.
factors of 130 are : | 1 , 2 , 5 , 10 , 13 , 26 , 65 , 130 |
factors of 115 are : | 1 , 5 , 23 , 115 |
We see that the Greatest Common Factor = 5.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.