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GMAT Prep2?? (J Divisible)


 
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dferm
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PostPosted: Wed May 14, 2008 6:31 pm    Post subject: GMAT Prep2?? (J Divisible) Reply with quote
Is the positive integer j divisible by a greater number of different prime numbers than the positive integer k?

(1) j is divisible by 30
(2) k = 1000

Can someone please help..

Thanks.
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mwilliams
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PostPosted: Wed May 14, 2008 7:29 pm    Post subject: Reply with quote
Is the positive integer j divisible by a greater number of different prime numbers than the positive integer k?

(1) j is divisible by 30
(2) k = 1000

(1)plug in 30 for j, 30 is divisible by 2, 3, & 5
(2) 1000 is divisible by 2 & 5

therefore (1) & (2) together the are sufficient, but insufficient alone
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