958 and 1437
All natural numbers (counting numbers) greater than one are either prime or composite. If divisible by only one and the number itself, it is prime; if divisible by other natural numbers, then is composite. One is the only natural number that is neither prime nor composite.
1700 and 2550
That number is a common multiple.
Two even numbers won't have an odd GCF.
850 and 1700
Neither of those numbers is divisible by the other.
1700 and 2550
1700 and 2550
958 and 1437
958 and 1437
958 and 1437
958 and 1437
All natural numbers (counting numbers) greater than one are either prime or composite. If divisible by only one and the number itself, it is prime; if divisible by other natural numbers, then is composite. One is the only natural number that is neither prime nor composite.
2 AND 3
The smallest possible pair of numbers is 1700 and 2550.
It doesn't have a numerical answer. If both numbers are even, one will be divisible by the other.