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What is the greatest prime factor of 4^17 - 2^28?

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Re: What is the greatest prime factor of 4^17 - 2^28?  [#permalink]

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New post 15 Oct 2019, 05:08
student26 wrote:
What is the greatest prime factor of \(4^{17} - 2^{28}\)?

A. 2
B. 3
C. 5
D. 7
E. 11


Check similar questions to practice:
http://gmatclub.com/forum/what-is-the-g ... 58991.html
https://gmatclub.com/forum/what-is-the- ... 13300.html
http://gmatclub.com/forum/what-is-the-g ... 70126.html
http://gmatclub.com/forum/what-is-the-g ... 90425.html

Hope it helps.
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Re: What is the greatest prime factor of 4^17 - 2^28?   [#permalink] 15 Oct 2019, 05:08
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