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Even Perfect and Prime Puzzle

  1. Nov 30, 2009 #1
    Determine all possible even perfect number(s) C such that each of C-1 and C+1 is a prime number.
  2. jcsd
  3. Nov 30, 2009 #2


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    Is it even possible to find ALL of these such numbers when only 47 perfect numbers are known?

    Anyway, I say 6. That is all :smile:
  4. Nov 30, 2009 #3
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