olymmath

RU-SPB 2021 Problem 115

  • Grade 11

A natural number nn is given. Prove that ∑n≤p≤n21p<2\sum_{n \le p \le n^2} \frac{1}{p} < 2 where the sum is across all primes pp in the range [n,n2][n, n^2]

Dataset text AI-MO AoPS. Quoted with source.

Solutions

No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.

Add a solution

Similar problems

These problems have the most words in common with this statement.

Locator ru-spb/2021/p115 · Tag 43P7KWNTKJ · Edit this page on GitHub · Keys: j next, k previous