20110119, 23:38  #188 
Mar 2010
Hampshire, UK
51_{10} Posts 

20110119, 23:47  #189  
May 2008
Wilmington, DE
2842_{10} Posts 
Quote:


20110120, 06:05  #190 
May 2007
Kansas; USA
2×5,077 Posts 
A great prime pair vmod!
Just curious for reporting purposes on the pages: What is your current search depth on the other 2 k's and how high to you intend to search them? It's good that you surpassed your initial reservation of n=100K. :) Last fiddled with by gd_barnes on 20110120 at 06:06 
20110124, 13:18  #191 
May 2008
Wilmington, DE
2·7^{2}·29 Posts 
S737
S737 tested n=25K100K
http://primes.utm.edu/primes/page.php?id=97673 38*737^93785+1 is prime 4*737^n+1 is now a 1ker with a weight = 1117 Results emailed  Base released 
20110126, 15:57  #192  
Jun 2009
3×223 Posts 
Quote:
Thanks Peter 

20110127, 03:13  #193  
Nov 2009
2·5^{2}·7 Posts 
Quote:
Congrats on proving R170 and lucky you R5/R25 prime Indeed a very good week for you. 

20110127, 04:35  #194  
May 2007
Kansas; USA
10154_{10} Posts 
Quote:
FYI for everyone's quick reference: 2*170^1664281 is prime! The smallest base with k=2 remaining is now Sierp base 218, which has 2 k's remaining at n=100K. 

20110131, 04:24  #195 
May 2007
Kansas; USA
10011110101010_{2} Posts 
Ingo Buechel, Wilfred Keller, and David Broadhurst found:
2*467^126775+1 is prime See http://primes.utm.edu/primes/page.php?id=97818. This eliminates k=2 from S467. Only k=4 remains. CRUS had previously searched k=2 to n=100K. 
20110131, 05:37  #196  
A Sunny Moo
Aug 2007
USA (GMT5)
3×2,083 Posts 
Quote:
This sounds like it would be an interesting base to try to finish off k=4 on, just because it would be kind of neat. I might take a whack at it myself. Gary, would you by chance be willing to sieve this one for n=100K150K for me, or is your i7 fully booked with other work? 

20110131, 15:41  #197 
Jan 2011
10100_{2} Posts 
S1029
34*1029^106501+1 is prime.
Conjecture proven. 
20110131, 15:53  #198  
May 2007
Kansas; USA
23652_{8} Posts 
Quote:


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