20051220, 21:19  #12  
May 2004
FRANCE
2^{2}·5·29 Posts 
The project has found 24 Primes / 28 !
Thank you, Citrix!
I submitted the last prime found. Also, I registered all the primes found by this project, sorted by dates : 15441*2^20584+1 is prime! Time: 1.172 sec. by Footmaster 27/01/05, 03:17PM 21069*2^23006+1 is prime! Time: 1.751 sec. by Footmaster 27/01/05, 03:51PM 21699*2^72874+1 is prime! Time: 21.318 sec. by Footmaster 27/01/05, 06:43PM 14661*2^91368+1 is prime! Time: 42.331 sec. by Jean Penné 27/01/05, 10:03PM 52839*2^32558+1 is prime! Time: 2.640 sec. by masser 27/01/05, 11:19PM 58791*2^79420+1 is prime! Time: 27.092 sec. by Mystwalker 27/01/05, 11:21PM 45306*2^28968+1 is prime! by Mark 27/01/05, 11:29PM 50166*2^24980+1 is prime! by Mark 27/01/05, 11:29PM 35874*2^53926+1 is prime! (121.4506s+0.0058s) by tcadigan 28/01/05, 06:41AM 34914*2^29562+1 is prime! (31.6149s+0.0012s) by tcadigan 28/01/05, 07:13AM 53226*2^89748+1 is prime! Time: 33.184 sec.by em99010pepe 28/01/05, 09:30AM 30579*2^48594+1 is prime! by Mark 28/01/05, 12:02AM 41709*2^80594+1 is prime! by geoff 29/01/05, 05:38AM 60891*2^40144+1 is prime! Time: 6.498 sec. by Jean Penné 29/01/05, 09:30AM 23799*2^105890+1 = 23799*4^52945+1 is prime! by Ken_g6 29/01/05, 05:45PM 55611*2^40212+1 is prime! by Citrix 29/01/05, 05:46PM 33771*2^178200+1 is prime! Time: 183.245 sec. Jean Penné 29/01/05, 08:10PM 51171*2^93736+1 is prime! Time: 19.943 sec. by masser 31/01/05, 04:18PM 51171*2^184528+1 is prime! Time: 87.521 sec. by masser << 63411*2^72064+1 is prime! Time: 42.157 sec.by Footmaster 31/01/05, 06:05PM 8139*2^25954+1 is prime! by Citrix 01/02/05, 06:08AM 5886*2^108040+1 is prime! Time: 76.371 sec. by Jean Penné 06/02/05, 09:28AM 49386*2^357416+1 is Prime! by Footmaster 25/05/05, 08:44AM 33879*2^378022+1 is prime! by Footmaster 20/06/05, 12:21PM 42717*2^905792+1 is prime! Time: 7292.117 sec.Jean Penné 14/10/05, 08:18PM Please, let me know if I made errors... My new k is at 925952 base 2. Merry Christmas and Best Regards, Jean Quote:


20060226, 00:43  #13  
Sep 2004
UVic
2×5×7 Posts 
Quote:


20060403, 20:05  #14 
May 2004
FRANCE
2^{2}×5×29 Posts 
k=23451 tested up to n=1250044
Hi,
I reached this evening n=1250044 base 2, no prime found... so, continuing... The bad new is that FFT length has just increased to 128K and so, the time for each test increased from 4500s to 6600s, nothing's perfect! P.S. Citrix, I will respond to your private mail tomorrow! 
20060424, 22:17  #15 
Sep 2004
UVic
70_{10} Posts 
update
Code:
K Weight At 2^ Testing up to 2^ Reserved by 18534 92 1000000 Citrix 23451 230 1250000 2000000 Jean Penne 60849 263 1250000 64494 93 1000000 1250000 tcadigan 66741 0 ~~~~~~~~~BASE 4 SIERPINSKI NUMBER~~~~~~~~~ Total Weight = 678 Average Weight= 169.5 Sieving Completed (Billions): 03000 best of luck all... Tyler Last fiddled with by tcadigan on 20060424 at 22:22 
20060523, 05:59  #16 
Jun 2003
1582_{10} Posts 
Found something interesting.
http://www.primepuzzles.net/problems/prob_036.htm Only 2 even candidates left to find. (May be we should focus on the 2 odd k's (To 2 Million) we have left, atleast we will be able to acomplish something. As it is, there are only 3 people working on this project. What do you think?) Last fiddled with by Citrix on 20060523 at 09:50 
20060605, 18:53  #17  
May 2004
FRANCE
580_{10} Posts 
Should we focus on odd k's ?
Quote:
For now, my k=23451 is at n=1301228 base two, and I am continuing... But I cannot presently take the remaining free odd k=60849... Regards, Jean 

20060621, 20:15  #18 
Jun 2003
2·7·113 Posts 
Code:
K Weight At 2^ Testing up to 2^ Reserved by 18534 92 1000000 Citrix 23451 230 1250000 2000000 Jean Penne 60849 263 1250000 64494 93 1000000 1250000 tcadigan 66741 0 ~~~~~~~~~BASE 4 SIERPINSKI NUMBER~~~~~~~~~ Total Weight = 678 Average Weight= 169.5 Sieving Completed (Billions): 03000 I have started working on my k, I am at 1060000. Tyler have you been able to find any more factors, that should reduce some work for me. Anyway, are you sieving till 1.5 M or 2M. Going beyond 1.5 M is alot of work. Last fiddled with by Citrix on 20060621 at 21:08 
20060622, 20:42  #19  
Sep 2004
UVic
2×5×7 Posts 
Quote:
when I do finish I'll sieve on the same files that I have all along. they're the ones for jjsieve, that go up to a max of 2 M for each k. I'll just move them up to where everyone is right now and run them. lets find a prime! Tyler Last fiddled with by tcadigan on 20060622 at 20:43 

20060628, 14:33  #20 
May 2004
FRANCE
2^{2}·5·29 Posts 
Continuing k=23451, taking k=60849
Hi,
For k=23451, I am now at n=1353164 ; no prime, continuing... I can now also take k=60849 from n=1250000 on an other PC, if you agree. The date of the presieved file I am using for k=60849 is 09 Dec. 2005, please, let me know if you have a more recent one... Regards, Jean 
20060707, 06:29  #21 
Sep 2004
UVic
2×5×7 Posts 
okay I'm back. there have been internet connectivity issues where I'm staying. I finally finished my reservation on 64494 to 1.25 M, finding no prime. so I am going to proceed as I stated before and resume sieving for a while. Jean I don't believe that the I have done any sieving since the file you have, so you should be able to proceed fine. does anyone have any suggestions for how often I should upload the new files?
let's finally find a new prime~! Tyler 
20060708, 06:03  #22 
Jun 2003
2×7×113 Posts 
You can remove the values upto 1325000 for my k. They are being PRPed. Expected date of completion is 20 July. Sieved file around then will be appreciated.
edit: One interesting thing: All the above k's are 3*prime or 9*prime if you do not count the even factors. What a coincidence, since this thread is under the PSP project. Last fiddled with by Citrix on 20060708 at 07:25 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Sierpinski/Riesel Base 5: Post Primes Here  robert44444uk  Sierpinski/Riesel Base 5  358  20081208 16:28 
Sierpinski/Riesel Base 10  rogue  Conjectures 'R Us  11  20071217 05:08 
Sierpinski / Riesel  Base 23  michaf  Conjectures 'R Us  2  20071217 05:04 
Sierpinski / Riesel  Base 22  michaf  Conjectures 'R Us  49  20071217 05:03 
Sierpinski Base 5 Reservations  geoff  Sierpinski/Riesel Base 5  2  20060829 18:23 