Message 6991 from Yahoo.Groups.Primeform
Return-Path: <paulunderwood@...>
X-Sender: paulunderwood@...
X-Apparently-To: primeform@yahoogroups.com
Received: (qmail 28308 invoked from network); 24 Feb 2006 20:32:14 -0000
Received: from unknown (66.218.66.167)
by m28.grp.scd.yahoo.com with QMQP; 24 Feb 2006 20:32:14 -0000
Received: from unknown (HELO n10a.bullet.dcn.yahoo.com) (216.155.203.233)
by mta6.grp.scd.yahoo.com with SMTP; 24 Feb 2006 20:32:14 -0000
Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
Received: from [216.155.201.64] by n10.bullet.dcn.yahoo.com with NNFMP; 24 Feb 2006 20:31:37 -0000
Received: from [66.218.69.6] by t1.bullet.dcn.yahoo.com with NNFMP; 24 Feb 2006 20:31:37 -0000
Received: from [66.218.66.86] by t6.bullet.scd.yahoo.com with NNFMP; 24 Feb 2006 20:31:36 -0000
Date: Fri, 24 Feb 2006 20:31:36 -0000
To: primeform@yahoogroups.com
Message-ID: <dtnqf8+gtvk@...>
In-Reply-To: <dtno4k+4lgr@...>
User-Agent: eGroups-EW/0.82
MIME-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: quoted-printable
X-Mailer: Yahoo Groups Message Poster
X-Yahoo-Newman-Property: groups-compose
X-Originating-IP: 216.155.203.233
X-eGroups-Msg-Info: 1:12:0:0
X-Yahoo-Post-IP: 84.51.132.40
From: "Paul Underwood" <paulunderwood@...>
Subject: Re: Primality proof of (34*10^15768-43)/9 - need help!
X-Yahoo-Group-Post: member; u=64538083; y=nRmoT-9aTq4WD3XHWDvgD8kbvzWDFJ1ypobAAispT08wygYoQhLQptGx
X-Yahoo-Profile: paulunderwooduk

Greg:

thanks. I've got Primo 2.2.0 beta 5 running on the number with 99.9%
usage of an XP3200+ (2.2GHz) with DDR400/PC3200 memory under WINE. So
I guess it's going to take a few days.

Paul

>
> In http://groups.yahoo.com/group/primeform/message/6261, it is stated
> that Primo 2.2.0 beta 5 took about 320 Athlon GHz-hours to prove a
> 3519-digit number, so this number should take significantly less.
> Although I'm not sure of the speed improvements of 2.2.0 over 2.1.2...
>
> Greg
>
> --- In primeform@yahoogroups.com, "Paul Underwood" <paulunderwood@>
> wrote:
> >
> > > So, at this point, there is one missing bit. The primality of the
> > > 2454-digit PRP
> > > Phi(7884,10)/(3951358309*43519681*11668781326071061*50594869824289387600141*
698321409620914728282889*10226827901261393154083521*2768214255974519676483980192126941)
> > > remains to be proven. This is where I need help. Primo would make
> > > easy, if time consuming, work of this, but since I'm in the US, the
> > > Primo license prohibits me from using it. Could someone outside of
> > > the US, Canada, and Japan prove the primality of this number?
> >
> > I'll gladly do this. Please can somebody give an estimate of the
> > number of 32-Athlon GHz hours are needed by Primo 2.1.2 for a proof?
> >
> > Paul
> >
>


Message 6988 Message 6989 Message 6990 Message 6992 Message 6993 Message 6994

Message 6995 Message 6998 Message 7003 Message 7006 Message 7024 Message 7033