The GCD of given numbers is 1.
factors of 90 are : | 1 , 2 , 3 , 5 , 6 , 9 , 10 , 15 , 18 , 30 , 45 , 90 |
factors of 52 are : | 1 , 2 , 4 , 13 , 26 , 52 |
factors of 1 are : | 1 |
We see that the Greatest Common Factor = 1.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.