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GMAT Prep (Greatest Prime Factor) Pract2

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by aatech » Tue May 13, 2008 12:46 pm
4^17 = (2^2)^17 = 2^34 = (2^28)*(2^6)

eq becomes (2^28)[(2^6)-1] = (2^28)*63 = (2^28)*9*7

Ans D. What's the OA
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by dferm » Tue May 13, 2008 1:04 pm
Don't understand your logic...
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by aatech » Tue May 13, 2008 1:07 pm
Which part??? Did you get little bit or nothing.. I will try to explain in a diff way...
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by dferm » Tue May 13, 2008 1:08 pm
Nothing...
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