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Find the Numbers

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Find the Numbers

by dtweah » Tue May 19, 2009 12:09 pm
Exactly one of the following numbers cannot be written as a^3 + b^3 where a and b are integers.Which number is it?

(a) 700056
(b) 707713
(c) 7000639
(d) 7077283
(e) 7077915
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Source: — Data Sufficiency |
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by francopiccolo » Tue May 19, 2009 8:53 pm
Not a clue. Sbdy knows an answer?
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by abhinav85 » Thu May 28, 2009 11:02 am
IMO D

What is the OA??
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by raleigh » Thu May 28, 2009 8:44 pm
Where do you get your questions? You never post OA, and they don't seem like any problems I've seen in MGMAT, Kaplan Advanced, or OG.
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by Osirus@VeritasPrep » Fri May 29, 2009 5:27 am
raleigh wrote:Where do you get your questions? You never post OA, and they don't seem like any problems I've seen in MGMAT, Kaplan Advanced, or OG.
Thank God...I got scared I would get owned by the harder questions if they look like that one. I don't see how you can calculate that without a calculator and it would definitely take longer than 2 minutes to answer
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by mikeCoolBoy » Sun May 31, 2009 9:20 am
Could an expert answer this one, please? :roll:
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