The equation is represented as Ax + By = Cz.

"The Beal Conjecture states that the only solutions to the equation Ax + By = Cz, when A, B, C, are positive integers, and x, y, and z are positive integers greater than 2, are those in which A, B, and C have a common factor," a press release explained.

http://ca.news.yahoo.com/blogs/good-news/want-million-bucks-solve-math-problem-154936720.html