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Jean Penné 2005-12-20 21:19

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=Citrix]email send to Dr Cadwell.

New DB id is 835, the id should be converted into a project in 2-3 days.

MY k is at 850000.[/QUOTE]

tcadigan 2006-02-26 00:43

1 Attachment(s)
[QUOTE=Citrix]Could I have the latest sieve file?[/QUOTE]

here it is. I haven't updated Jean and my status, haven't seen the need, but also haven't been sieving recently.

Jean Penné 2006-04-03 20:05

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!

tcadigan 2006-04-24 22:17

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): 0-3000
[/CODE]

I've completed 60849 up to 1.25 mil with no prime. I'm stopping that one and moving to 64494 to 1.25 mil afterwards I plan to sieve to 5000 billion then we'll see where we're at. as always help any help is appreciated

best of luck all...
Tyler

Citrix 2006-05-23 05:59

Found something interesting.

[url]http://www.primepuzzles.net/problems/prob_036.htm[/url]

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?)

Jean Penné 2006-06-05 18:53

Should we focus on odd k's ?
 
[QUOTE=Citrix]Found something interesting.

[url]http://www.primepuzzles.net/problems/prob_036.htm[/url]

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?)[/QUOTE]

This is interesting, indeed!

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

Citrix 2006-06-21 20:15

[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): 0-3000
[/CODE]


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.

tcadigan 2006-06-22 20:42

[QUOTE=Citrix]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.[/QUOTE]

actaully I haven't been seiving at all...yet...I've still been working on my reservation. yesterday I just passed 1.2 M on my k, when I get home I could probably do some calculations to determine when I'll be done. I can post those tomorrow.

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

Jean Penné 2006-06-28 14:33

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

tcadigan 2006-07-07 06:29

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.:no: 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

Citrix 2006-07-08 06:03

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.


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