Saturday, May 2, 2009

Problem 10 - GMAT Number Properties

Is positive integer x even?

(1) The greatest prime component of x is 13.

(2) The least prime component of x is 7.
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2 comments:

  1. AnonymousJune 15, 2009 at 10:02 PM

    B?

    ReplyDelete
  2. blaoismOctober 6, 2009 at 5:05 PM

    (1) x can have 2 as its factor. Insuff
    (2) any prime >= 7 is odd. So, x is a product of odds. Suff

    B

    ReplyDelete

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