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19777New record for 12 simultaneous primes

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  • Dirk Augustin
    Dec 30, 2008
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      Hello Group!

      While searching for a large Cunningham Chain of length 11 and after
      sieving through more than 40 trillion candidates I discovered the
      following Cunningham Chain of length 12:

      CC12 of 2nd kind starting at 62 digits:

      13931865163581*2^n*127#+1, n=0,..,11

      This improves also the old record for 12 simultaneous primes from 58
      to 64 digits.

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