Solving Quickly

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righty123: Newbie | Next Rank: 10 Posts; Posts: 7; Joined: Sat Feb 13, 2010 8:44 pm

by righty123 » Mon Mar 08, 2010 5:20 pm

Does integer K have a factor p such that 1 < p < K?

a) K > 4!
b) 13! + 2 < K < 13! + 13

Can anyone think of how to solve this quickly?

Answer is B.

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Source: Beat The GMAT — Data Sufficiency | Mon Mar 08, 2010 5:20 pm

papgust: Community Manager; Posts: 1537; Joined: Mon Aug 10, 2009 6:10 pmFollowed by: 252 members; Thanked: 653 times

by papgust » Mon Mar 08, 2010 5:31 pm

The question is discussed a lot of times in this forum,

https://www.beatthegmat.com/ds-question-t1514.html

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