mersenneforum.org - Help test 2995125705 - Find a new top 5000 prime!

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Help test 2995125705 - Find a new top 5000 prime!

It's now time to help find some primes for another 15k!

We would like to gather more information on this 15k, so we would like to continue testing it to n=1,000,000. We now have llr .txt test files ready to go to help search for k=2995125705 primes! (This part of our project is the same idea as 321 search)

How to help search for primes:
1. If you don't have LLR.exe, [URL=http://www.mersenne.org/gimps/]download llr.zip here![/URL]

2. Download one of the available test files below (Right-click link, and select "Save Target As") Save the file in the same folder as LLR.exe FYI- The files in the 290,000 to 300,000 range take about 3 days to complete on a 2.2GHz P4. [u]Post to this thread that you have downloaded a test range.[/u]

3. Open LLR, and select the "Test" menu, then "Input Data"
In the "Input File (From NewPGEN):" box enter the file from step 2 (IE - 300to305.txt)
In the "Output file:" box, enter prime.txt
Click "OK"
(If the LLR icon doesn't turn from "Red" to "Green" repeat step 3, and it will start the 2nd time you hit "OK")

3.5 If you see a number show up in the prime.txt file, you have found a new prime that will qualify for the top 5000 prime list! If you don't have a 15k top 5000 prime list prover code, I'll help you set one up so you will receive credit for the new prime!

4. When the test is complete, [u]please mail the lresults.txt file[/u] renamed (see below) and zipped to [EMAIL=kosmaj@yahoo.com]Kosmaj[/EMAIL], or post the renamed txt file to this thread.
[i]Renaming convention[/i]: if you worked on the [u]300to305.txt[/u] file then please rename [u]lresults.txt[/u] into [u]lresults300to305.txt[/u].

If you have any questions e-mail [EMAIL=kosmaj@yahoo.com]me[/EMAIL] and I'll try to answer your question.

Results (each file 700k-1M in size):
[URL=http://www.15k.org/2995125705/results/lres_300k.txt]300-400k[/URL]
[URL=http://www.15k.org/2995125705/results/lres_400k.txt]400-500k[/URL]
[URL=http://www.15k.org/2995125705/results/lres_500k.txt]500-600k[/URL] complete
[URL=http://www.15k.org/2995125705/results/lres_600k.txt]600-636k[/URL] complete
[URL=http://www.15k.org/2995125705/results/lres_636k.txt]636-700k[/URL] complete
[URL=http://www.15k.org/2995125705/results/lres_700k.txt]700-730k[/URL] complete
[URL=http://www.15k.org/2995125705/results/lres_730k.txt]730-770k[/URL] complete
[URL=http://www.15k.org/2995125705/results/lres_770k.txt]770-800k[/URL] complete
[URL=http://www.15k.org/2995125705/results/lres_800k.txt]800-825k[/URL] complete
[URL=http://www.15k.org/2995125705/results/lres_825k.txt]825-865k[/URL] complete

The list of contributors to n=865k can be found [URL=http://www.15k.org/2995125705/k299Contribution.txt]here[/URL].
The complete list of all primes found so far will be available shortly.

Status: ("R" in the left-most column denotes ranges with result files available above)

[CODE]
Range Tested by
1 - 890,000 - 15k/RPS - Complete - 132 primes found
890,000 - 891,000 - lsoule - Complete
891,000 - 893,000 - Kosmaj - Complete - prime found! n=891645
893,000 - 895,000 - lsoule - Complete
895,000 - 896,000 - Kosmaj - Complete
896,000 - 897,000 - lsoule - Complete
897,000 - 898,000 - segmtfault - Complete
898,000 - 899,000 - lsoule - Complete
899,000 - 900,000 - segmtfault - Complete
900,000 - 902,000 - Kosmaj - Complete
902,000 - 903,000 - segmtfault - Complete
903,000 - 904,000 - Joshua2 - Complete
904,000 - 905,000 - segmtfault - Complete
905,000 - 906,000 - Joshua2 - Complete
906,000 - 907,000 - segmtfault - Complete
907,000 - 908,000 - Kosmaj - Complete
908,000 - 909,000 - Joshua2 - Complete
909,000 - 910,000 - Kosmaj - Complete
910,000 - 911,000 - segmtfault - Complete
911,000 - 912,000 - Kosmaj - Complete
912,000 - 913,000 - segmtfault - Complete
913,000 - 915,000 - Kosmaj - Complete
915,000 - 917,000 - segmtfault - Complete
917,000 - 918,000 - Kosmaj - Complete
918,000 - 919,000 - segmtfault - Complete
919,000 - 920,000 - Kosmaj - Complete
920,000 - 921,000 - segmtfault - Complete
921,000 - 922,000 - Kosmaj - Complete
922,000 - 923,000 - segmtfault - Complete
923,000 - 924,000 - Kosmaj - Complete
924,000 - 926,000 - segmtfault - Complete
926,000 - 927,000 - Kosmaj - Complete
927,000 - 931,000 - segmtfault - Complete
931,000 - 932,000 - Kosmaj - Complete
932,000 - 965,000 - segmtfault - Complete
965,000-1,000,000 - segmtfault - In Progress
[/CODE]
[b]Available ranges[/b]
Format: "File/URL", "Number of candidates"
Sieved through 25000 bn (2.5E13)
[I]No more files available[/I]

Approximate completion time per file with 145 k/n pairs, n=920000, 2800sec per test:
113 hrs (4 days 17 hrs) on a 3.0 GHz P-4 machine using LLR-3.6.2

Sieving stopped.

Please reserve the lowest range available. Thanks! :grin:

We already have 1 new prime for 2995125705!!
2995125705*2^231378-1 is prime!!

I want to test 235-240.
Cyrix

240-245 wpolly [Reserved]

I'm taking 245-250

Joss

Testing 250-255

Joss

My range is completed to 244811 with no primes.
But I'll go out for the Chinese IMO Team Selection test until April 4th.
Anybody kindly help me on the rest numbers.

2995125705 244813
2995125705 244817
2995125705 244833
2995125705 244834
2995125705 244838
2995125705 244844
2995125705 244847
2995125705 244848
2995125705 244855
2995125705 244856
2995125705 244864
2995125705 244874
2995125705 244881
2995125705 244882
2995125705 244885
2995125705 244888
2995125705 244894
2995125705 244901
2995125705 244902
2995125705 244904
2995125705 244912
2995125705 244916
2995125705 244929
2995125705 244942
2995125705 244952
2995125705 244957
2995125705 244967
2995125705 244969
2995125705 244984

Thank you very much.

Wpolly

Wpolly, good luck!
I will add this numbers to my testing file.

btw: 235-240 is completed without finding a prime.

Cyrix

no primes in Wpolly's numbers.

No prime in 250-255
On to the next one 260-265

Joss

I'm starting range 270-275

Joss

no primes in 255-260.

Cyrix

I'll be doing 275-280 also.

Joss

Congratulation for your new 15k-prime 2995125705 276667 Jocelynl!

Cyrix

Complete checking 265 - 270

1 prime :D
2995125705 267830

Taking 280 to 290. These will be tested during my vacation :)

Only 1 prime in range 275-280

Starting range 290-295

Joss

No primes in 280-290 :(

Taking 300-305

One prime in 300-305 -> 2995125705 304550
Taking 305-310

Congrats to BotXXX and the whole team on it's new prime!!!

I'll (re-)join the search and take 310-315.

-- Thomas L19

No primes in 305-310
Did send results files to [email]15k@strikepoint.com[/email].

Range 310-315 finished, no primes found.

-- Thomas.

315 to 320 has no primes.
Taking the next one. 320-325

No primes in 320 to 325. Taking 325-330 as a try ;)

No primes in 325-330. Will continue my work on Carol/Kynea numbers for a while with the machine i used for this part.

I started doing 330-335

Reserving:

335-340

:coffee:

I take next range 345 - 350

[B]simon-b[/B]

[QUOTE]I take next range 345 - 350[/QUOTE]
Note that the next range is 340-345! But if you insist, or if you already began working on 345-350 that's OK. Just tell us which one?

I'm processing both at the moment.
340 - 345
345 - 350

All right, the status table is now updated accordingly.

Welcome to "15k Search" and happy hunting!

Range 335-340 is complete, results e-mailed in.

Reserving:

360-365

:coffee:

I am sorry but I have to give up 330-335, my results are also lost due to a hard disk failure ... I can not continue the work on it so it is available to anybody else.
Sorry, best regards, Keller

Range 360-365 is complete, results e-mailed in.

350-355 no primes. lresults.txt e-mailed.

taking 330-335 :wink:

Range 330-335 complete, results emailed, reserving 365-370

Range 365-370 completed and results sent and....

[Thu Aug 12 14:05:58 2004]
2995125705*2^369638-1 is prime! Time : 452.064 sec.

:banana: :banana: :banana:
If proved that would be my very first discovered prime number :razz:
But first I would need some help to setup a prover program (as mentionned at the start of this thread) :help: , have just emailed SlashDude about this...
(My machine is a P4 WinXp, could install Cygwin if required)

Just realized the "prover code" is in fact a reference on Chris Caldwell website, not a program :redface: :redface: :redface:

Will try to setup one right now :smile:

ok done :)
[url]http://primes.utm.edu/bios/page.php?id=676[/url]

[QUOTE=segmtfault]ok done :)
[url]http://primes.utm.edu/bios/page.php?id=676[/url][/QUOTE]
:banana: Congratulations!

[b]segmtfault[/b]
Congrats indeed! :cool: I hope you find many more!

I just asked Slash Dude to provide more ranges.

BTW, I wonder where is [B]simon-b[/B] :question: he has three 5-k ranges reserved but I haven't heard from him in quite a while.

Happy hunting to everybody! :grin:

Thanks ET & Kosmaj :)

About simon-b's ranges, I could process them if you make them available to me. After all my first range here was to eliminate the "hole" left by the unfortunate Keller's HD failure... :razz:

[QUOTE]About simon-b's ranges, I could process them if you make them available to me.[/QUOTE]
That will be greatly appreciated, but let's wait a bit more to see where is simon-b and what's the status of his search so that efforts are not doubled. I also asked Slash Dude to provide more ranges to keep you busy!

Hi Kosmaj,
Any news about your latest post ? :smile:

[B]segmtfault[/B]
First of all congrats on your huge prime for k=3 :cool: :shock:

I'm sorry but I have no news. Slash Dude disappeared, went to vacation or something like that, he hasn't replied yet to my mail to his e-mail address and over the forum.

I wrote to simon-b too, over the forum only and got no reply. I just got his e-mail address from the forum's admin and will mail him again.

Maybe some files are still on the 15k.org server but I don't know the path. Joss, if you read this please mail me URL's of 299 files. Thanks!

Finally, if you badly want to find another prime with a relatively small n you can reserve one k, for example k=37 from n=210000 on, but you will have to sieve first.

I just made 2 ranges available this morning,
from an old file that was only sieved to 300Bn. I was unable to find the ksieve file Mark was working on. There should only be a few extra.

Happy testing
Joss

Thanks Kosmaj and Jocelynl !
I am reserving the first range :wink:
(370 to 375)

Range 370-375 finished, no prime found.
Reserving 375-380 :showoff:

Congrats on your latest prime!
2995125705*2^377098-1, 113528 digits

Please note that I cancelled one range reserved by simon-b, if you wish you can work on it next. I wrote simon-b two times, once to his private e-mail address but got no response. I suspect he is a student on his summer vacation, that's why I keep his other two ranges still reserved. But if he doesn't appear soon I'll cancel these two as well.

BTW, does anybody know where is Slash Dude?? Haven't heard from him in more than a month. He is in possession of sieving results for k=2995125705 up to 1M, if he doesn't appear soon we'll have nothing to work on.

Thanks :wink:
I will work on the cancelled range as soon as the 375-380 one is finished.

The LLRP4 3.1 new version was released just before the end of the 375-380 test so I reran all the test range as a double check (no new missing primes found :smile: ).

I then completed the 355-360 range, no primes found.
I am currently working on 380-385.

[B]segmtfault[/B]
Thanks for all the hard work! Good to hear that LLR4 bug didn't affect your range.

I updated the table on page 1 and cancelled one more range assigned to simon-b who never answered my messages.

Taking range 345 to 350 to clear the gap.
Using LLR4 3.2 on a P4 1.6

[B]BotXXX[/B]
Thanks for your help! I updated the table and got the last cancelled range, 340-345k to check. Hopefully we both find at least one prime each :geek:

No primes in range 345 - 350
See attached file for results, mail server is having problems at this moment.

Thanks for all the hard work. I just updated the table. At about the same time I checked the 340-345k range and found no primes.

Finally we closed all the gaps and k=2995125705 is now continuously checked to 385k.

I'll be taking 385 to 390 through the LLR program.

I am back and taking 390 to 395 :)

Also reserving 395-400

All right, I just updated the table. Good luck to both of you!

I also added 4 more ranges. Please let me know if after 420k you prefer smaller chunks, 3 or 4k long, instead of 5k now. A 5k chunk contains about 800 candidates, so 3k will be about 480 and 4k will be about 640.

I'd like to reserve 400-405.

thanks,
Larry

[B]Isoule[/B]
400-405 is yours and good luck!
But please check the note [URL=http://www.mersenneforum.org/showpost.php?p=44938&postcount=254]here[/URL].

[b]Congrats to segmtfault[/b]

sadly for me no prime in 385 - 390. Still problems with mail, attached results file to this message.

Thanks BotXXX :)

I am reserving range 405-410

About the size of the chunks I have no personal preference, but perhaps we could progressively reduce the size so that the processing time for a range remains more or less constant (to avoid discouraging project members :smile: )

400-405 is complete with no primes.

-Larry

390-400 complete
405-410 complete (no primes)

Reserving 410-415 :wink:

415-420 complete, 1 prime!

2995125705 418999

-Larry

Congratulations for your prime :banana:

I just finished 410-415 (no prime)
Reserving 424-428

420-424 is complete, no primes.

428-432 complete, no primes

Reserving 432-436.

424-428 complete, no primes
Reserving 436-440

432-436 complete, no primes
Reserving 440-444

Hello guys,

I updated the list of ranges and also:
1) Added ranges to 500k in 4k chunks.
2) Changed the e-mail to send results. Please be sure to send lresults.txt file (renamed and zipped) to [EMAIL=kosmaj@yahoo.com]me[/EMAIL]. If you worked on the 300to305.txt file then please rename lresults.txt into lresults300to305.txt. You can send results of several chunks at once, zipped.
3) Reserved 448-452 by myself.

Happy hunting! :geek:

Thank you for feeding the machines :bounce:

444-448 complete, no primes
Reserving 456 to 460.

Reserving 460 to 464

436-440 complete, no primes found.
Reserving 464-468 :smile:

440-444 and 456-460 complete, no primes
Reserving 468-472

460-464 complete, no primes.
Reserving 472-476

468-472 complete, no primes
Reserving 476-480

Hello guys,
As you can see we are quickly approaching the 500k milestone, thanks mostly to many boxen provided by [b]lsoule[/b] :cool: It will be nice if we hit one more prime before 500k.

BTW, I slightly changed the top post of the thread, removing the first list of ranges redundant to the "Status" list and moving available ranges to the bottom of the post. Now one can check the status and ranges at the same time and it's also easier to edit the post :smile:

If you have any comments and/or wishes (excluding primes themselves!) please post them here.

464-468 complete, no primes

476-480 and 480-484 complete, no primes
Reserving 484-488.

2995125705*2^449154-1 is prime! (135219 digits) :banana:

We definitely hit the paydirt with this [i]k[/i], as the ranges appear populated with primes :cool: But I feel a bit uncomfortable since I'm not working that much on this k, yet I was lucky enough to reserve the right range. :smile: