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14821Re: [PrimeNumbers] Prime formula...

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  • Jud McCranie
    May 3, 2004
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      At 01:29 PM 5/3/2004, William Bouris wrote:
      >Hello Group...
      >Can someone prove or disprove?
      >phi( (p^2) ) = [phi(p)]^2 + phi(p) iff "p" is prime, and phi(...) is the
      >totient function.
      >Or is this equation already known?

      One direction is trivial, I think the other one is easy too.
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