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Simple Prime Numbers Equation

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  • Sebastian Martin Ruiz
    Hello all: Let: F[n]= Sum[n - i*j, {i, 1, n}, {j, 1, n/i}] n is prime if and only if: F[n + 1] - 2F[n] + F[n - 1]=2 More: F[n + 1] - 2F[n] + F[n - 1]=d(n)
    Message 1 of 1 , Jan 9, 2009
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      Hello all:

      Let:

      F[n]= Sum[n - i*j, {i, 1, n}, {j, 1, n/i}]

      n is prime if and only if:

      F[n + 1] - 2F[n] + F[n - 1]=2

      More:

      F[n + 1] - 2F[n] + F[n - 1]=d(n)


      Sincerely

      Sebastian Martin Ruiz





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