Dr. Steve's Level 6 SAT Math Problem Thread

Test Preparation SAT Preparation
121

<p>level infinity problem</p>

<p>can you gimme a hint?</p>

122

<p><em>Inserts some weirdly disguised IMO problem where the solution depends on if there are infinitely many prime pairs.</em></p>

<p>Another problem: Determine whether or not there exists an odd positive integer n > 1 such that σ(n) = 2n.</p>

123

Hi sir…I think the answer is 70…am I right