Question 28
Find all integer solutions of the equation
$$
\frac{x^{7}-1}{x-1}=y^{5}-1
$$
$$
\frac{x^{7}-1}{x-1}=y^{5}-1
$$
IMO 2006 — Complete Shortlist Question 28
IMO Shortlist · IMO 2006 — Complete Shortlist
IMO Shortlist · IMO 2006 — Complete Shortlist