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2014 AMC 12A Question 22

AMC12 · 2014 AMC 12A

Question 22

The number $5^{867}$ is between $2^{2013}$ and $2^{2014}.$ How many pairs of integers $(m,n)$ are there such that $1\le m\le2012$ and $$
5^n\lt2^m\lt2^{m+2}\lt5^{n+1}?
$$
  1. $278$
  2. $279$
  3. $280$
  4. $281$
  5. $282$