20080907, 06:23  #34 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
5^{3}·73 Posts 
Maybe someone found a way to do a modular sqrt?
Do the FFT, take a sqrt, do the inverse FFT. Don't reach for you revolvers, it's a joke. 
20080907, 06:42  #35 
Dec 2003
Hopefully Near M48
3336_{8} Posts 
Are you certain 20:00 UTC is the earliest mention? Does anyone have an archived report showing there was no mention at 19:00 UTC?
Last fiddled with by jinydu on 20080907 at 06:42 
20080907, 06:56  #36 
Feb 2004
France
2·457 Posts 
I cannot believe it !!!!!!!!!!!
C'est incroyable ! C'est un rĂªve !
That is incredible ! It is a dream ! Two years with no result. And now two new candidate primes !!! And, based on a deep knowledge of the properties of the digraph under x^22 modulo a Prime Mersenne number, I know how VERY LOW is the probability of a falsepositive: So I'm sure we have 2 new Mersenne primes !! But, do we have found M45 and M46 ? ................ I'm not sure ............ but... hush. OK. I need another machine for verifying this new one... damned. Tony 
20080907, 07:38  #37 
Jan 2007
DEUTSCHLAND !
3×89 Posts 
That is VERY bad luck for the second finder, when both numbers have more than 10M digits. (Or everybody get 50.000 USD)

20080907, 07:52  #38 
P90 years forever!
Aug 2002
Yeehaw, FL
7,151 Posts 
I've rerun the last 10000 iterations. It checks out.

20080907, 08:04  #40 
Feb 2004
France
1622_{8} Posts 
Hey ! Isn't it about 3am in your town, George ?! Cannot sleep ?!!!
Congratulations for this marvelous result, George !!! Thanks a lot !!! Tony Last fiddled with by T.Rex on 20080907 at 08:05 
20080907, 08:10  #41 
"Nancy"
Aug 2002
Alexandria
2,467 Posts 
If the big irons are busy and Prime95 on a good quad core is about as fast as [GM]lucas on a nonIntel 16 core, couldn't we just run an LL test with Prime95, write residues every 1M iterations, and use the independent hardware/software run to verify from one residue to the next? Like they did with F_{24}?
Alex 
20080907, 08:15  #42 
P90 years forever!
Aug 2002
Yeehaw, FL
15757_{8} Posts 

20080907, 08:36  #43  
Apr 2006
Down Under
89 Posts 
Quote:
From Sun's esteemed pony tailed leader to all the rank and file, there's a little geek in all Sun employees that simply can't decline a request to do something cool with some big grunty hardware Last fiddled with by rgiltrap on 20080907 at 08:45 Reason: Added blog link 

20080907, 09:07  #44 
Dec 2003
Hopefully Near M48
2·3·293 Posts 
So what hardware is being used for this verification?

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