Re: Mersenne: so many primes, so little time...

Spike Jones wrote: Mersenne primers, please indulge me with this fanciful history of the future: Question: assuming a half life of protons of 1E35 years, is there enough time for the lithiverse to confirm the 37th mersenne prime via brute force factoring, before the decay of protons

Re: Mersenne: Primes for money

Pierre Abbat wrote: What do you call someone who searches for primes only because of the prize money? A mersennary. I wish I had said that. In fact, I may claim that I did, since it is such a perfect pun/whatever. Gerry, feeling uncharacteristically envious

Mersenne: Best chance to make a real contribution?

. Thanks for any help, Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Symposium Chair Region 15 Ass't RVP, JT Chair Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles _ Unsubscribe list

Mersenne: Clustering of Mersenne numbers with small factors

A while ago I asked how easy it is to find factors, since I thought that might be more satisfying than finding non-zero LL residues. I was encouraged by the responses, and switched my P166 to factoring. It went through 31 candidates before finding one with a factor, and then found another just

Mersenne: Should I continue an LL test after h/w problems?

-- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Symposium Chair, Region 15 Ass't RVP, JT Chair Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles _ Unsubscribe list info -- http

Mersenne: Re: Mersenn: 1000 Barrier

Russel Brooks wrote: I've been with GIMPS for about two years and yesterday achieved a personal milestone; I finally broke thru the 1000 barrier and made it to 996 on the top producers list. Each step forward is getting smaller and smaller though; I think I'm approaching the knee of the

Mersenne: Suggestion for mprime documentation

to the real mathematicians here who may be offended by something this plebeian. Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Symposium Chair, Region 15 RVP Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles--USDA 9b-ish, Sunset 18-19 my work: helping

Mersenne: Prime95 is hung up (sorta)-- what to do?

real question is whether there is anything better to do than just kill the program and restart it. Also, is there anything I should do (beyond this email) to make sure the P-1 result gets logged? Thanks for any advice, Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder my work: helping generate

Mersenne: How fast is ECM?

I have decided (with prompting from someone with much more experience) to switch one of the CPU's in my dual processor system away from LL testing, because of the slowdown (~30%) when both are running LL. While finding factors the normal way is fun, factoring difficult small Mersenne numbers

Re: Mersenne: All Cunningham Wanted Numbers Factored

overall. Perhaps a Mersenne number I would have got will be shown to be prime. So be it. It is a thrill to be able to contribute to this effort. Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Symposium Chair, Region 15 RVP Member San Fernando Valley, Southern California Iris Societies in warm

Mersenne: Seeming problem with mprime 21.3 (ECM too fast?)

I just upgraded my linux box mprime to 21.3. The machine is a dual P3. One CPU has been running LL, and the other factoring (currently ECM). I have been starting mprime with a shell script, putting each execution in an xterm, using the -m option to get the -d printout and make it easy to

Re: FW: Mersenne: Re: Factoring Failure?

Carleton Garrison wrote: [? wrote:] This is why I like that you lose credit for a LL-test if someone else finds a factor later, or if two other independant checks prove your result to be wrong. Me too. I understand that George's top producer page does this, while the PrimeNet stat

Re: Mersenne: Mersenne prime #39

George Woltman wrote: Hi all, I've exchanged email with the discoverer. It looks like we've found the 39th known Mersenne prime - not a hacking attempt. Well done everyone! Hooray for us! The first prime since I started. Would it be a reasonably easy task to compute and post

Re: Mersenne: Re: Factoring benefit/cost ratio

, I must be having a senior moment. I would swear George said that one way a person could lose credit for a correct LL test is if later factoring finds a factor. Is my feeble brain making this up, or is finding a factor more important than stated above? Gerry -- mailto:[EMAIL PROTECTED] Gerry

Re: Mersenne: Re: 39. Mersenne-Primzahl Prost

:30 or so Pacific time, but all are welcome at any time. Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Director Symposium Chair, Region 15 RVP Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles--USDA 9b-ish, Sunset 18-19 my work: helping generate

Mersenne: Re: GIMPS Party--Was: Re: Mersenne Digest V1 #917

digits of the exponent. Eerie, huh? -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Director Symposium Chair, Region 15 RVP Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles--USDA 9b-ish, Sunset 18-19 my work: helping generate data for: http

Re: Mersenne: Maybe the #######th Mersenne prime???!!!

tested! Elias Daher Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Director Symposium Chair, Region 15 RVP Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles--USDA 9b-ish, Sunset 18-19 my work: helping generate data for: http

Mersenne: Optimizing P4 usage

factoring, but the linux machine does. Any suggestions? TIA, Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Director Symposium Chair, Region 15 RVP Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles--USDA 9b-ish, Sunset 18-19 my work: helping

Mersenne: Are problems more likely in the last 1% of a 10 gigadigit LL?

am bummed. Any guess--RAM, CPU, Thanks for advice or condolences. Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Director Symposium Chair, Region 15 RVP Member San Fernando Valley, Southern California Iris Societies in warm, winterless Los Angeles--USDA 9b-ish, Sunset 18-19 my work

Mersenne: M2161 has a factor

A few months ago I decided that since finding a Mersenne prime is extremely unlikely, and I don't have a good chance of finding any huge prime, looking for factors of small unfactored Mersenne might be more rewarding. I didn't really expect to see anything so soon, but this evening the following

Re: Mersenne: Stress test failure

it. RAM, motherboard, and CPU are the likely culprits, in decreasing probability. MEMTEST86 (do a web search) may help determine the problem. Good luck, and welcome to the hunting of the prime. Gerry -- mailto:[EMAIL PROTECTED] Gerry Snyder, AIS Symposium Chair and Director, Region 15 RVP in warm

Re: Mersenne: 40th Mersenne Prime Found (probably)!

George Woltman wrote: Hello all, This morning a new Mersenne Prime was reported to the primenet server. It will be the new largest known prime but is less than 10 million digits Congratulations to all!! Gerry -- mailto:[EMAIL PROTECTED] American Iris Society Affiliates Chair,