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Topic: Divisibility
Replies: 1   Last Post: Jan 24, 2014 12:16 PM

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Posts: 2
Registered: 1/23/14
Posted: Jan 23, 2014 6:11 PM
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Hi! I need help for the following problem: Prove that number 2^(2^n)-4 is divisible by 12 where "n" is any natural number.
Hope you guys can help me out..and please give clear explanations.


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