prime number

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vaivish: Master | Next Rank: 500 Posts; Posts: 371; Joined: Tue Apr 29, 2008 10:16 amFollowed by: 1 member; Thanked: 6 times

by vaivish » Thu Jul 31, 2008 1:08 pm

. How many prime factors does positive integer N have?
(1) N/5 has a prime number.
(2) 3N^2 has two different prime number.

OA is [/spoiler]B[spoiler][/spoiler]

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Source: Beat The GMAT — Data Sufficiency | Thu Jul 31, 2008 1:08 pm

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