20090206, 01:53  #67  
May 2007
Kansas; USA
3^{3}×17×23 Posts 
Quote:
Nice one! This is amazing! We have yet ANOTHER Sierpinski base with 1 k remaining at n=100K. These final k's on the Sierp side are truly stubborn. Gary 

20090209, 12:28  #68 
Mar 2006
Germany
101101110000_{2} Posts 
Riesel Base 35
here is my first base35 prime.
after 2 'small' generalized woodalls the only one in the TOP5000 currently in the big list! 75570*35^741111 is prime! i checked this k alone, because it was the one with the most candidates left to n=100k! 
20090316, 20:00  #69 
May 2007
Kansas; USA
24475_{8} Posts 
My first nonpowerof2 top5000 prime:
2377*28^104621+1 is prime 4 k's to go on Sierp base 28 Riesel and Sierp base 28 are both now at n=105K. Gary 
20090418, 14:55  #70 
Jan 2006
Hungary
2^{2}×67 Posts 
Riesel base 19
Primality testing 28034*19^923021 [N+1, BrillhartLehmerSelfridge]
Running N+1 test using discriminant 5, base 5+sqrt(5) Calling BrillhartLehmerSelfridge with factored part 100.00% 28034*19^923021 is prime! (10748.9939s+0.0356s) I grabbed a bunch of k's, sieved them for a while and then continued only with the one that had the most candidates. I've done 57% of the range when I had found the prime. Happy me, Willem. 
20090418, 20:55  #71 
May 2007
Kansas; USA
3^{3}×17×23 Posts 
Excellent prime Willem!

20090419, 00:30  #72  
"Mark"
Apr 2003
Between here and the
6471_{10} Posts 
Quote:


20090419, 22:01  #73 
Jan 2006
Hungary
2^{2}×67 Posts 

20090420, 00:26  #74  
"Mark"
Apr 2003
Between here and the
6471_{10} Posts 
Quote:
If you do decide to putter around with it, I'd be curious to see some comparison timings. Last fiddled with by rogue on 20090420 at 00:27 

20090527, 18:04  #75 
May 2007
Kansas; USA
10557_{10} Posts 
Here's a nice one:
3104*22^1611881 is prime I FINALLY got another one on my large base 22/27/28 testing. Only 1 k to go on Riesel base 22; continuing it up to n=200K. What else is new? ...many bases with 1 k remaining, especially on the Sierp side. Gary 
20090825, 20:07  #76 
Jan 2006
Hungary
2^{2}×67 Posts 
Primality testing 8681*30^1406271 [N+1, BrillhartLehmerSelfridge]
Running N+1 test using discriminant 11, base 1+sqrt(11) Calling BrillhartLehmerSelfridge with factored part 47.32% 8681*30^1406271 is prime! (15798.4912s+0.0541s) Tralala, Willem. 
20090825, 20:19  #77 
Mar 2006
Germany
2^{4}·3·61 Posts 

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