The GCD of given numbers is 1.
factors of 40 are : | 1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 |
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.