2 and any multiple of 2
Multiples of 2 that differ by 2
Any consecutive even numbers have a GCF of 2.
Two even numbers won't have an odd GCF.
There's a lot of possibilities. Any set of consecutive even numbers has a GCF of 2.
No. For example, the GCF of 8 and 12 is 4. The GCF of 12 and 18 is 6. The Greatest Common Factor of two even numbers will always be even, but it will not always be 2.
No. The GCF of 8 and 12 is 4.
No. The GCF of 4 and 8 is 4.
Yes.
The GCF is 2.
no, the GCF for 4 and 2 would be 2, which is even
If one of the numbers is a multiple of the other, the smaller number is the GCF. If the two numbers are prime numbers, the GCF is 1. If the numbers are consecutive, the GCF is 1. If the numbers are consecutive even numbers, the GCF is 2.
No, their GCF is always odd.
There are infinitely many pair of numbers. Take any two numbers that are coprime. Double both of them. Their GCF is 2.