20080916, 19:44  #738 
Feb 2008
2^{5} Posts 
Jeff Sounds like Chicago
Chicago record high 44C, record low 33C.

20080916, 19:58  #739 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
3×3,109 Posts 
perseverance pays off
Congratulations to everyone!
I found it interesting that the M_Sep was run (reserved) since January 19th. Sometime after March the number passed P1; in the beginning of June there were first millions of iterations, so it shows that perseverance pays off! Or it can show how narrow the time margin for the prize really was. What is that computer was 25% faster per iteration (it looks like it was doing ~0.2s per iteration or so)? Anyway, Congratulations! 
20080916, 20:03  #740 
May 2008
3·5·73 Posts 
Yes, maybe he turned his computer off for a few weeks when he vacationed in the summer.
Would that suck!! 
20080916, 20:12  #741 
Undefined
"The unspeakable one"
Jun 2006
My evil lair
2·3·1,013 Posts 

20080916, 20:51  #742 
∂^{2}ω=0
Sep 2002
República de California
2·7·829 Posts 

20080916, 20:54  #743 
Banned
"Luigi"
Aug 2002
Team Italia
1001011000000_{2} Posts 

20080916, 21:00  #744  
Jun 2003
Ottawa, Canada
10010010001_{2} Posts 
So it has been a busy day for me. Three interviews with papers, and also an interview on CBC Radio, which will be broadcast tonight on "As It Happens" a national wide program. I believe it is streamed online and will also be available afterwards as a downloadable file.
http://www.cbc.ca/asithappens/ This is the information I have from the producer: Quote:
Jeff. Last fiddled with by Jeff Gilchrist on 20080916 at 21:02 

20080916, 21:09  #745 
Jun 2003
The Texas Hill Country
3^{2}×11^{2} Posts 
Well, at 200 digits per minute, I calculate that it would take something like 45 DAYS to read just the digits without any breaks.

20080916, 21:16  #746  
Dec 2003
2^{2}·41 Posts 
Quote:
A. Actually, this is UCLA's eighth Mersenne Prime! In 1952, Professor Raphael Robinson found 5 new Mersenne Primes using UCLA's Standards Western Automatic Computer (SWAC), one of the fastest computers of its time. These were the 13th through 17th Mersenne Primes discovered, and each had hundreds of digits. Robinson's Mersenne Primes were the first to be found in 75 years, and the first to be discovered using a digital computer. In 1961, UCLA mathematician Alexander Hurwitz discovered the 19th and 20th Mersenne Primes on the UCLA Computer Center's IBM 7090 mainframe. Each of these numbers had over 1200 digits. Now, 47 years later, the UCLA tradition of finding Mersenne Primes continues! I graduated from CSU Fullerton, but spent my Freshman year at UCLA. 

20080916, 22:07  #747 
Aug 2002
Termonfeckin, IE
3×919 Posts 
Ah now I spent many many years at UCLA getting my PhD. I didn't know Edson Smith but I probably passed by the laboratory where the prime was found many times. And I kid you not, my machine at UCLA was zeppelin.cs.ucla.edu  the machine that discovered the prime was zeppelin.pic.ucla.edu. Damn! So near yet so far...
Last fiddled with by garo on 20080916 at 22:09 Reason: Punctuation 
20080916, 22:18  #748 
Aug 2002
Termonfeckin, IE
5305_{8} Posts 
37156667 passed through many hands before it went to the eventual discovered who as it has been noted took 8 months to finish the test. Here are the other unlucky ones who did know they were sitting on such a special treasure (the Mersenne prime bit not the 50k bit)
Code:
37156667 * 67 67.7 25.7 20.3 13Dec06 19:51 S549853 CAFCF4A69 37156667 * 67 42.1 15.9 45.9 14Mar07 08:42 GIMPSChina wonllu 37156667 * 67 52.9 3.9 35.1 15Jun07 14:53 S649190 C436E103B 37156667 * 67 0.5 38.5 87.5 16Sep07 07:46 16Sep07 06:46 S694970 C92C25E4D 37156667 * 67 49.2 15.5 67.5 15Oct07 00:17 16Sep07 06:46 S694970 C3CFDF4F1 Code:
37156667 * 67 1 20.3 128.8 61.8 07Feb08 17:29 19Jan08 13:35 hme2004 rw 37156667 * 67 1 59.9 135.1 61.1 17Mar08 14:50 19Jan08 13:35 hme2004 rw 37156667 * 67 1 80.0 136.2 62.2 07Apr08 17:24 19Jan08 13:35 hme2004 rw 37156667 70 598911 130.9 33.3 60.3 26May08 19:59 19Jan08 13:35 hme2004 rw 37156667 70 20052928 184.9 10.2 60.2 19Jul08 15:14 19Jan08 13:35 hme2004 rw Code:
43112609 * 68 40.8 12.2 20.2 18Apr08 15:35 S808839 43112609 69 7.5 31.5 80.5 20Jul08 19:36 14Jul08 23:33 UclaMath C20E3341C 
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