The GCD of given numbers is 1.
| factors of 12 are : | 1 , 2 , 3 , 4 , 6 , 12 |
| factors of 18 are : | 1 , 2 , 3 , 6 , 9 , 18 |
| factors of 48 are : | 1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 48 |
| factors of 57 are : | 1 , 3 , 19 , 57 |
| factors of 62 are : | 1 , 2 , 31 , 62 |
| factors of 4 are : | 1 , 2 , 4 |
We see that the Greatest Common Factor = 1.