Solve the following equation in positive integers $x, y$: $x^{2017} - 1 = (x - 1)(y^{2015}- 1)$
Problem
Source: 2017 Saudi Arabia Mock BMO II p2
Tags: number theory, diophantine, Diophantine equation
Source: 2017 Saudi Arabia Mock BMO II p2
Tags: number theory, diophantine, Diophantine equation
Solve the following equation in positive integers $x, y$: $x^{2017} - 1 = (x - 1)(y^{2015}- 1)$