This problem owned me when I took GMAT Prep 1 to see where I was at. This is one of the hardest problems on the GMAT Prep. You can find solutions to most of the GMAT prep problems with the search. Ian wrote a great solution to this problem.
https://www.beatthegmat.com/gmat-prep-q-t14339.html
Range of a Prime number?
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Source: Beat The GMAT — Problem Solving |












