The GCD of given numbers is 15.
factors of 1320 are : | 1 , 2 , 3 , 4 , 5 , 6 , 8 , 10 , 11 , 12 , 15 , 20 , 22 , 24 , 30 , 33 , 40 , 44 , 55 , 60 , 66 , 88 , 110 , 120 , 132 , 165 , 220 , 264 , 330 , 440 , 660 , 1320 |
factors of 1065 are : | 1 , 3 , 5 , 15 , 71 , 213 , 355 , 1065 |
We see that the Greatest Common Factor = 15.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.