MathDB
Natural numbers

Source: RMO 2004, Grade 8, Problem 1

February 26, 2006

Problem Statement

Find all non-negative integers nn such that there are a,b∈Za,b \in \mathbb Z satisfying n2=a+bn^2=a+b and n3=a2+b2n^3=a^2+b^2. Lucian Dragomir