Mersenne Digest Monday, April 3 2000 Volume 01 : Number 714 ---------------------------------------------------------------------- Date: Sat, 1 Apr 2000 02:41:14 EST From: [EMAIL PROTECTED] Subject: Mersenne: The Hard Drive of the Gods and a Slam-Dunking Bill Gates <<The possibility of LGM is "sexy" in a pop-culture kind of way. Prime numbers are only "sexy" to a handful of people.>> Nerds vs. pop culture? Simple. Bill Gates is, oh, about a kazillion times wealthier than Michael Jordan. Yet few people have posters of Bill Gates hung up in their rooms. Speaking of kazillions.... <<Perhaps if I'm feeling up to it, I'll find which book I read this example in. It probably doesn't bear mentioning that I read this stuff in a book on the odds of abiogenesis occurring. :) So just ignore that aspect. Probably in Behe's "Darwin's Black Box" or Sproul's "Not a Chance">> Yeah, the psuedomathematical kooks like to bring up huge numbers based on crud arguments. By the way, a common estimate for the number of elementary particles in the universe is 2^83. I remember noting this in my Extended Essay: "If the modulo M[N] operation is not performed at every cycle of computing S[K], the estimated number of elementary particles in the observable universe soon becomes insufficient to store the value of S (http://www.tasam.com/~lrwiman/faq-mers)." Had it been a less serious paper, I would have thrown in my usual reference to The Hard Drive of the Gods, the one that uses every elementary particle in the universe to store a byte. By the way, my Extended Essay titled "Mersenne Primes: Development through History, Ongoing Work, and a New Conjecture" is still at http://homepages.go.com/~joekorovin/Mersenne.html (or Mersenne.zip for the .DOC file - capitalization is important!) Stephan T. Lavavej _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 01 Apr 2000 08:58:32 +0100 From: Michael Oates <[EMAIL PROTECTED]> Subject: Mersenne: How do I start factoring... Hi, How do I start factoring when I am part way through doing an LL test, I would just like to have a break from LL tests for a few weeks and do some factoring, but I don't want to loose the number I am part way through. What is the procedure to use? Thanks, Mike, - -- ATLAS CELESTE - Bevis Star Atlas - & "The CD-ROM" A very rare atlas found at the Godlee Observatory http://www.u-net.com/ph/mas/bevis/ Astronomy in the UK http://www.ph.u-net.com _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 01 Apr 2000 11:39:34 -0800 From: Eric Hahn <[EMAIL PROTECTED]> Subject: Re: Mersenne: How do I start factoring... Michael Oates wrote: >How do I start factoring when I am part way through doing >an LL test, I would just like to have a break from LL tests >for a few weeks and do some factoring, but I don't want to >loose the number I am part way through. > >What is the procedure to use? There's actually 3 ways you could go about doing this... 1) Request exponents to factor thru the manual testing forms at http://www.entropia.com/ips/manualtests.html#checkouts and then add them to your WORKTODO.INI file at the beginning (stopping PRIME95 first, adding the lines, then continuing). 2) Make sure PRIME95 is set up to request factoring, stop PRIME95, edit the WORKTODO.INI file to remove the LL-test, save the WORKTODO.INI file, continue PRIME95 and let it contact IPS and request some factoring work, stop PRIME95, re-edit the WORKTODO.INI file, add the LL-test back at the end, save the WORKTODO.INI file, and continue PRIME95. NOTE: Cut and Paste works best if doing it this way. 3) Start a new instance of PRIME95 doing factoring work. At this point you can either let the new instance run (stopping the original instance while the new instance in running), or stop both instances, combine the WORKTODO.INI files into the original instance's WORKTODO.INI file (having the LL-test at the end), and continue on with the original instance of PRIME95. I sure there are probably a couple of other ways too.... Eric _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 01 Apr 2000 11:25:18 -0800 From: Eric Hahn <[EMAIL PROTECTED]> Subject: Re: Mersenne: Factoring Depths Dave Mullen wrote: <excerpt><fontfamily><param>Arial</param>I'd just like to get a clarification on some files I downloaded from the Entropia FTP. </fontfamily> <fontfamily><param>Arial</param>Re the file of exponents, and how far they have been trial factored. </fontfamily> <fontfamily><param>Arial</param>I extracted a range using the decomp program. Each exponent has a number by the side, but I am unclear to what this number refers. </fontfamily> <fontfamily><param>Arial</param>Is it </fontfamily> <fontfamily><param>Arial</param>a) The bitlength of the K value alone i.e. a bit length of 32 would indicate all K values 1 to (2^32) have been tested ? </fontfamily> <fontfamily><param>Arial</param>or </fontfamily> <fontfamily><param>Arial</param>b) The bitlength of 2 x K x Exp + 1 as computed ? </fontfamily> <fontfamily><param>Arial</param>Just to save me repeating previously done work. </fontfamily></excerpt> The answer is B. It the length of the actual factor being tested. Therefore, 10000139,64 means that all potential factors thru 2^64 (18,446,744,073,709,551,615) have been tested (all ~10^12 of them). Eric _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 1 Apr 2000 14:52:07 -0500 From: mark snyder <[EMAIL PROTECTED]> Subject: Re: Mersenne: The Hard Drive of the Gods and a Slam-Dunking Bill Gates At 2:41 AM -0500 4/1/00, [EMAIL PROTECTED] wrote: (snip) > >By the way, a common estimate for the number of elementary particles in the >universe is 2^83. I remember noting this in my Extended Essay: (snip) >Stephan T. Lavavej Wrong base. The number of atoms in the universe is about 10^81, so maybe the number of elementary particles is about 100 times that. mark _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 01 Apr 2000 21:02:24 +0100 From: Michael Oates <[EMAIL PROTECTED]> Subject: Re: Mersenne: How do I start factoring... Eric, & Brian Thank you both for your detailed explanations (Brian sent his by email) I am sorted now :) Mike, - -- ATLAS CELESTE - Bevis Star Atlas - & "The CD-ROM" A very rare atlas found at the Godlee Observatory http://www.u-net.com/ph/mas/bevis/ Astronomy in the UK http://www.ph.u-net.com _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 1 Apr 2000 18:28:26 EST From: [EMAIL PROTECTED] Subject: Mersenne: Insidious Mersenne Brainwashing <<2^83>> D'oh! Of course, I meant to write 10^83. I guess that with this being the Mersenne mailing list and everything, all of those "2^P - 1" vibes got into my brain, or something. :-D Stephan T. Lavavej _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Fri, 31 Mar 2000 21:45:54 -0500 From: Pierre Abbat <[EMAIL PROTECTED]> Subject: Re: Mersenne: GIMPS in Science News >M(17) is the number of people that could fit into a /very/ large open arena >or stadium. What stadium is that big? The one at Urbana seats only about 20000. phma _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 01 Apr 2000 19:12:52 -0600 From: kilfoyle <[EMAIL PROTECTED]> Subject: Re: Mersenne: GIMPS in Science News I think the one at U. of Texas Austin holds 60,000 Pierre About wrote: > >M(17) is the number of people that could fit into a /very/ large open arena > >or stadium. > > What stadium is that big? The one at Urbana seats only about 20000. > > phma > _________________________________________________________________ > Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm > Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 1 Apr 2000 20:43:41 -0500 From: "Rick Pali" <[EMAIL PROTECTED]> Subject: RE: Mersenne: GIMPS in Science News Pierre About wrote: > > > M(17) is the number of people that could fit into a /very/ > > > large open arena or stadium. > > > > What stadium is that big? The one at Urbana seats only about 20000. > > I think the one at U. of Texas Austin holds 60,000 Even one of the shorter tracks on the NASCAR circuit (Bristol) holds 250,000 people. Rick. - -+--- [EMAIL PROTECTED] http://www.alienshore.com/ _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 1 Apr 2000 20:45:57 EST From: [EMAIL PROTECTED] Subject: Re: Mersenne: GIMPS in Science News <<M(17) is the number of people that could fit into a /very/ large open arena or stadium. >> We get what you're saying with the /very/ (emphasis on very), but it could have been more accurately expressed with: M(17) is about the number of people that could fit in three open arena stadiums. - Blaine Higdon _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sat, 01 Apr 2000 20:57:28 -0500 From: "Fred W. Helenius" <[EMAIL PROTECTED]> Subject: Mersenne: [OFF TOPIC] Stadiums At 08:45 PM 4/1/00 EST, [EMAIL PROTECTED] wrote: ><<M(17) is the number of people that could fit into a /very/ large open arena >or stadium. >> >M(17) is about the number of people that could fit in three open arena >stadiums. The subject of stadium sizes is off-topic for this list; let it end here. Brazil has two football (soccer) stadiums with capacity larger than M(17). Maracana, in Rio, has held over 200000 people. The Rose Bowl in Pasadena, CA. holds 105000, over 80% of M(17). Reference: http://www.nlink.com.br/~diogo/t_l_s_o_e.html _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 02 Apr 2000 12:29:20 EDT From: "Nathan Russell" <[EMAIL PROTECTED]> Subject: Re: Mersenne: GIMPS in Science News >From: Yvan Dutil <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: Mersenne: GIMPS in Science News >Date: Fri, 31 Mar 2000 14:45:22 +0100 > >Well, I think the diffence of culture between the people of GIMPS and those >of SETI@Home can be illustred simply by the comparaison of subject of >discussion Agreed! >between this list and sci.astro.seti. This is the listing of recent >subjects: > > >SETI@home Online Newsletter 1 >Cmd line ver 2.4 >exe 2 >problems width WINNT CLI 2.4 5 One wonders whether this is a typo or a problem resizing the window. Rather sad in either case. >No more blinking >icon 2 >Exobiology and the Fermi paradox. 32 >BeOS client >question >6 >Command line 2.4 is "Doing basline smoothing." all 5 No problems with these three... >!!!! HAVE FUN >!!!! 2 >Fight Gasoline >Prices 119 Can you imagine how upset the people on here would be if there were an OT thread that got that many replies? >ANN: SETI Spy 2.3.1 available >9 > >WINNT CLI 2.4 upgrade from WINNT CLI 2.0 32 >Clarification on "strongest gaussians" 3 >Win NT CLI version 2.4 still gets wrong percentage 3 >SETI Monitor is ZDNet's pick of the day!!! 9 >MicroSoft >Case >7 Another OT thing typical of Usenet... I might note here that the 's' in Microsoft should be lowercase. I wonder whether that was noted. >Ye Olde >data? >3 >Scientists discover two new planets circling stars 1 >anybody know how to set up a ramdisk? 5 ?! >Mac s@h >clients >10 >Software Flaw - WHO DO I TELL 5 Sounds like some of the stuff I posted when I first got on, only about ten times worse. >Problems with >server 1 >A quick >tip... >1 >Problems with returning result (error -20;2) 1 >2 cts about WU processing time >1 > >Missing switches in CLI S@H clients 1 > >This newsgroupe may not represent teh majority of users. maybe, >alt.sci.seti >would do better. LOL > >Yvan Dutil Regards, Nathan, wondering how much it cost the Usenet server companies to pass along that "gas prices" thread. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Sun, 02 Apr 2000 13:31:46 +0100 From: Yvan Dutil <[EMAIL PROTECTED]> Subject: Re: Mersenne: The Hard Drive of the Gods and a Slam-Dunking BillGates mark snyder wrote: > At 2:41 AM -0500 4/1/00, [EMAIL PROTECTED] wrote: > > (snip) > > > > >By the way, a common estimate for the number of elementary particles in the > >universe is 2^83. I remember noting this in my Extended Essay: > > (snip) > > >Stephan T. Lavavej > > Wrong base. The number of atoms in the universe is about 10^81, so maybe > the number of elementary particles is about 100 times that. I think photons and neutrinos are about 1 millions time more abondant than other particles. Yvan Dutil _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ Date: Mon, 03 Apr 2000 18:02:26 EDT From: "Nathan Russell" <[EMAIL PROTECTED]> Subject: Mersenne: Interesting press for GIMPS There is an article at http://www.newscientist.com/keysites/netropolitan/981128.html that discusses GIMPS as "perhaps the most famous--and most notorious--distributed computing project" and then refers to Aaron as an example (the only one they give, BTW) of why it is so notorious. The article is quite outdated - for example, it refers to D.net as having several projects going. Interestingly, it does not state any figure for the number of primes found by GIMPS, or state any prizes for any of the projects. Despite being a 1998 article, it is still listed in Yahoo!. Regards, Nathan, noting that every project's clients have undoubtedly managed to find their way where they are not wanted, and that this no more makes the project 'notorious' than any large company is 'notorious' because some of their employees may be over-charging the health plan. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com _________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers ------------------------------ End of Mersenne Digest V1 #714 ******************************
