Uh, one guy slipped into aero nautical engineering once to ask me out. *blinks* Then there was the one who went and read up on the idea of the aesthetic in the medieval period to start flirting. So I am not sure why flirting with number is out of the question. In fact it might be the only time, outside of SGA and a few of my better (stranger) friends, that I could conceive of a conversation beginning with Mersenne primes. Although it would be nice if more people did. Maybe.

Then again he may have just had an instant moment of needing to discuss the difference between odd numbers and primes. This is always a possibility.