Just to say that my name's Tom Purcell and am a new user on this site. To be brief, I enjoy many aspects of mathematics, with elementary number theory being my favourite. That's not to say that I'm an expert, however, although I do have a passing knowledge of the usual areas such as Fermat's Little Theorem, Pell's Equation, linear and quadratic diophantine equations, etc - Pythagorean Triples occupying my time at the moment.
Anyway, my main reason for joining is to broaden my knowledge, chat with like-minded people and hopefully offer one or two answers if I can.
All the best!