Hello, Bashyboy!

I need to find the Relation such that:

I included (0, 0) as one of my ordered pairs in the relation set, but apparently it isn't suppose to be in it.

Why is that? .Isn't 0 divisible by one?

By convention, we do not consider zero in discussions of GCDs and LCMs.

Recall the defintion of a GCD.

. . It is the greatest number that dividestwo (or more) numbers.into

What is the GCD of 0 and 17?

Both 0 and 17 are divisible by 17.

. . Hence: .

What is the GCD of 0 and 0?

Both 0 and 0 are divisible by

. . Hence: .

And for the same two sets, and , I have to find the relation:

What I found was

But the only correct ordered-pair in that set is (2, 2).

I'm not entirely sure what I did wrong.

Your second pair is incorrect: .

I would include: .