Re: GRU and NTG record
- --- In email@example.com, "djbroadhurst" <d.broadhurst@...> wrote:
>Without the 2.9% factorization from the p1505 helper, I would have had to run CHG at 26.7%, similar to Andy's proof of Phi(3793,18371). CHG would probably need h=15 or more, and with a candidate over 50k digits, I'd guess it would have taken on the order of one week for the CHG part of the proof, depending on how many CPUs I devoted to the task.
> The next-to-largest helper
> was also rather useful, not so?
> How long might CHG have taken without it?
> Best regards
Certainly it's more than the:
>Total=5491stime that Primo 4.0.0 LG32 spent on the ECPP certificate for p1505.
The Primo certificate for p12155 is now online at:
Incidentally this appears to be the first time the Top-5000 canonicalizer did not alter the form of my ECPP prime submission.
- Very impressive! Congratulations!
The NTG record has been ours (David and me) for a very long time. I'm actually quite happy somebody broke it.
Time to take it back ;-)
All te best,
----- Original Message -----
From: Tom <tjw99@...>
Sent: Friday, September 2, 2011 1:01 AM
Subject: [PrimeNumbers] Re: GRU and NTG record
--- In firstname.lastname@example.org, "djbroadhurst" <d.broadhurst@...> wrote:
> Congrats to Tom for beating the GRU and NTG records, with
> helped by a monster Primo proof:
Thanks! Details of the CHG proof (29.6%) are posted at:
The Primo certificate has been submitted to Marcel Martin's Top-20 list.
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