20101103, 00:37  #1 
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
3·11·157 Posts 
230 bits! M1237 (partially) factored
Code:
George Woltman Manual testing 1237 FECM Nov 2 2010 3:07PM 0.0 0.0000 2538207129840687799335203259492870476186248896616401346500027311795983 I mean 230 bits Last fiddled with by petrw1 on 20101103 at 00:37 
20101103, 00:50  #2 
P90 years forever!
Aug 2002
Yeehaw, FL
17320_{8} Posts 
Not me, I just record the result.

20101103, 00:50  #3 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2·5·983 Posts 

20101103, 01:48  #4  
Jun 2005
lehigh.edu
2^{10} Posts 
Quote:
even aside from the number of !!'s. Any chance of a moderator changing digits to bits (or 230 to 70)? And, of course, M1237 is reduced to a 303digit composite; rather than being factored. bdodson Last fiddled with by bdodson on 20101103 at 01:55 Reason: typo 

20101103, 04:05  #5  
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
143D_{16} Posts 
Quote:


20101103, 11:31  #6 
Jun 2005
lehigh.edu
10000000000_{2} Posts 
Sorry for grumbling; I had earlier read Bob's report of the p70 over on the
Cunningham Tables pages, objecting that M1237 is not in the Cunningham range. The report from epfl in June describes the PS3 code as focussed on 2^M 1 for M from 1100 to 1400, but this wasn't just any 2^M1 ... one of the few with no known factor. This is the first we've heard with M > 1200, definitely a notable start, !!!! indeed. Bruce 
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