I'll admit I only copied and pasted this and i don't actually understand the question but here it is:

Two integers, m and n, each between 2 and 100 inclusive, have been chosen. The product, mn, is given to mathematician X. The sum, m + n, is given to mathematician Y. Their conversation is as follows:
X: I don't have the foggiest idea what your sum is, Y.
Y: That's no news to me, X. I already knew that you didn't
know.
X: Ahah, NOW I know what your sum must be, Y!
Y: And likewise X, I have surmised your product !!

Find the integers m and n.

If you solve this you ARE a genius