20130126, 04:44  #23 
"Nathan"
Jul 2008
Maryland, USA
5×223 Posts 
Just for reference, to compare with M43112609 at 12,978,189 digits:
Code:
Millions of Digits  Approximate Exponent Size  13 43,185,000 14 46,507,000 15 49,829,000 16 53,151,000 17 56,473,000 18 59,795,000 19 63,117,000 20 66,439,000 Last fiddled with by NBtarheel_33 on 20130126 at 04:44 
20130126, 04:47  #24 
Romulan Interpreter
Jun 2011
Thailand
19·461 Posts 
Wow! That is really good news! And motivation for us to continue, we were a bit depressed after so long dry period...
Congrats to the founders! Eagerly waiting to see the exponent. (thinking it makes no sense to offer the services for checking, there are faster and more reliable guys there, but if you are in hurry and need a CuLu fast result  like 50 hours  then count me in. OTOH, we waited years... one week more wont kill anybody). 
20130126, 05:52  #25 
Jan 2013
1 Posts 
I have a 590GTX coupled with a i73930k. I'd be willing to double check but uh I am a noob so feel free to walk me through it :)

20130126, 09:47  #26 
"Nathan"
Jul 2008
Maryland, USA
5·223 Posts 
If this discovery turns out, and given curtisc's rep, it has a 99.95% chance of doing so, we will add a couple of lines to the milestones page.
Will probably be deep into the Roaring Twenties before we doublecheck everything under this new baby, though... 
20130126, 09:49  #27 
"Nathan"
Jul 2008
Maryland, USA
5·223 Posts 

20130126, 10:42  #28 
"Åke Tilander"
Apr 2011
Sandviken, Sweden
2·283 Posts 
Other work on the new Mersenne prime
It would be very nice if the information about other work done on this new Mersenne prime exponent were not ereased from the database. I guess it would be nice for those who earlier did trial factoring on the exponent to notice this and get the feeling that they also contributed to the new discovery.

20130126, 13:38  #29 
Einyen
Dec 2003
Denmark
2^{7}·23 Posts 
Any big iron or GTX 580/590 started verifying yet?

20130126, 13:42  #30 
"Jerry"
Nov 2011
Vancouver, WA
1,123 Posts 
George is waiting to see if he can get the save file first. We'll know more by tonight.

20130126, 14:17  #31 
P90 years forever!
Aug 2002
Yeehaw, FL
16003_{8} Posts 
I don't have the save file yet. Heck, the PC might be locked in some University Administrator's office until Monday morning. So, I'm letting flashjh start his CUDALucas run.
Ernst/Batalov are working on a multithreaded Mlucas run. Jeff Gilchrist has started a prime95 AVX run (the prime was found on an SSE2 Core2 machine). 
20130126, 14:31  #32 
Just call me Henry
"David"
Sep 2007
Cambridge (GMT/BST)
2×2,861 Posts 
I though we needed 2 nonx86 runs last time. The gpu run is one. Do we need another?

20130126, 15:02  #33  
P90 years forever!
Aug 2002
Yeehaw, FL
7171_{10} Posts 
Quote:
I'd be willing to reduce that to different software on the same hardware type. Personally I'd accept Ernst's Mlucas run on an x86 machine because as an LL / FFT programmer I know it would be virtually impossible for a previously unknown CPU bug to cause two different LL programs to fail with a false prime report. The whole concept of "when is a new prime considered independently verified" is kind of interesting. How important is the reputation of the verifier? Do GIMPS' claims require less independent verification because of its past track record (or equivalently does a unknown newcomer require a more thorough verification)? How much does the open source nature of the GIMPS and Mlucas software help a claim? How important is the claimant's ability to describe the process / algorithms used? I know I wouldn't trust a new claim by any of the cranks in the Misc Math subforum if it was independently verified by Joe Blow, John Doe and 10 other noname individuals  at least not until I reran the test myself. Last fiddled with by Prime95 on 20130126 at 15:03 

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