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Primes of the form 2^m + 1

  1. Oct 12, 2004 #1

    Zurtex

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    I've been asked to research primes of the form 2^m + 1, I've found all the known primes but now I've been asked to find out why m must be of the form 2^x for some natrual number x for 2^m + 1 to be prime. I've found quite a lot on this but nothing that clearly proves it, can anyone give me a good link or something please.
     
  2. jcsd
  3. Oct 12, 2004 #2

    Zurtex

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    Never mind, worked it out myself :biggrin: :biggrin:
     
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