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Re: Enormous proven primes

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  • paulunderwooduk
    ... http://www.primegrid.com/stats_sgs_llr.php shows 2554 primes. Adjusting David s figure: exp(-3*2554*exp(Euler)*log(2*10^14)/(666666*log(2))) =~ 38% I hope
    Message 1 of 8 , Oct 19, 2011
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      --- In primenumbers@yahoogroups.com, "djbroadhurst" <d.broadhurst@...> wrote:
      >
      > --- In primenumbers@yahoogroups.com,
      > "djbroadhurst" <d.broadhurst@> wrote:
      >
      > > Slightly unlucky. The project has found about 2660 primes,
      > > each with 3 associated targets sieved to depth 41T.
      >
      > Sorry: 41T was the range of k that was sieved; the depth was 200T.
      > It matters little. For
      >
      > > exp(-3*2660*exp(Euler)*log(41*10^12)/(666666*log(2))) =~ 38%.
      >
      > please read:
      >
      > exp(-3*2660*exp(Euler)*log(2*10^14)/(666666*log(2))) =~ 36%
      >
      > for the probability of not finding a pair, noting the rather
      > small change of 2%, for spending 5 times longer on sieving.
      >

      http://www.primegrid.com/stats_sgs_llr.php shows 2554 primes. Adjusting David's figure:
      exp(-3*2554*exp(Euler)*log(2*10^14)/(666666*log(2))) =~ 38%

      I hope PG will continue with their search window for twin/SGs when the primes are too small the top5000, and that DB finds some more AP3s thereof. This is assuming they don't soon strike gold,

      Paul
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