olymmath

RU-SPB 2017 Problem 114

  • Grade 11

A positive integer nn is called almost-square if nn can be represented as n=abn=ab where a,ba,b are positive integers that a≤b≤1.01aa\leq b\leq 1.01a . Prove that there exists infinitely many positive integers mm that there're no almost-square positive integer among m,m+1,…,m+198m,m+1,…,m+198 .

Dataset text AI-MO AoPS. Quoted with source.

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