One of the rules of posting is that you need to search for keywords before posting. ALL GMATprep questions have been answered before, some as often as once a week. We're trying to eliminate some of that repetition...
Here are some threads:
https://www.beatthegmat.com/gmat-prep-stumper-t4092.html
https://www.beatthegmat.com/the-smallest ... 35932.html
GMATPrep - Smallest Prime Number
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