Question 142
Solve the following equation in positive integers $x$, $y$:
$$
x^{2017}-1=(x-1)(y^{2015}-1).
$$
$$
x^{2017}-1=(x-1)(y^{2015}-1).
$$
MathNet 2017-part-05 — 176 problems (EN–VI) Question 142
Math Olympiad Vault · MathNet 2017-part-05 — 176 problems (EN–VI)