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The largest known natural number n such that: prime(n+1) - prime(n) = φ(n). Note that prime(φ(24)+1) - prime(φ(24)) = φ(φ(24)). [Capelle]

 

  Submitted: 2009-09-06 07:18:12;   Last Modified: 2014-07-22 18:54:53.



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