20031124, 19:22  #1 
Aug 2002
Minneapolis, MN
2^{2}×3×19 Posts 
Help test 210885  Find a new top 5000 prime!
It's now time to help find some primes!
We are currently sieving 210885 to n=1,000,000. We are at a point where it's faster to LLR test the smaller n's, then it is to sieve them. 15k=210885 has produced 101 primes from n=2 to n=213,029 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=210885 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, download the latest version of llr.zip here! 2. Download one of the available test files below (rightclick link, and select "Save Target As"). Save the file in the same folder as LLR.exe. Post to this thread that you have downloaded a test range. 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  275to280.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, please email the lresults.txt file to Kosmaj. Rename the file so that the range is included in the name, for example lresults500to502.txt. If you have any questions mail me (private mail, email) and I'll try to help you. Status: Code:
Range Tested by 2  230,000  jocelynl  Complete  101 primes found! 230,000  235,000  SlashDude  Complete 235,000  240,000  Cyrix  Complete 240,000  255,000  SlashDude  Complete 255,000  265,000  Cyrix  Complete 265,000  270,000  SlashDude  Complete 270,000  275,000  jocelynl  Complete  prime found! (n=270025) 275,000  295,000  SlashDude  Complete 295,000  300,000  ET_  Complete  prime found! (n=295335) 300,000  315,000  SlashDude  Complete  prime found! (n=301665) 315,000  330,000  SlashDude  Complete  prime found! (n=315639) 330,000  345,000  Kosmaj  Complete 345,000  350,000  SlashDude  Complete 350,000  355,000  Kosmaj  Complete 355,000  360,000  ET_  Complete 360,000  370,000  SB2  Complete 370,000  375,000  Kosmaj  Complete 375,000  380,000  SlashDude  Complete 380,000  385,000  Kosmaj  Complete 385,000  405,000  SlashDude  Complete 405,000  410,000  jocelynl  Complete 410,000  415,000  Kosmaj  Complete 415,000  420,000  Cyrix  Complete 420,000  435,000  SlashDude  Complete 435,000  450,000  Kosmaj  Complete 450,000  455,000  SlashDude  Complete 455,000  465,000  Kosmaj  Complete 465,000  470,000  jocelynl  Complete 470,000  475,000  SlashDude  Complete 475,000  480,000  Kosmaj  Complete 480,000  485,000  SlashDude  Complete 485,000  490,000  Kosmaj  Complete 490,000  495,000  SlashDude  Complete 495,000  502,000  Kosmaj  Complete 502,000  504,000  NiceMedTexMD  Complete 504,000  520,000  Cruelty  Complete 520,000  522,000  Dougy  Complete 522,000  524,000  Cruelty  Complete 524,000  526,000  Dougy  Complete 526,000  528,000  Cruelty  Complete 528,000  530,000  Dougy  Complete 530,000  532,000  Cruelty  Complete 532,000  534,000  grobie  Complete 534,000  536,000  Cruelty  Complete 536,000  538,000  Joshua2  Complete 538,000  540,000  Cruelty  Complete 540,000  542,000  NiceMedTexMD  Complete 542,000  548,000  Kosmaj  Complete 548,000  552,000  Cruelty  Complete  prime found! (n=549843) 552,000  560,000  Joshua2  Complete 560,000  562,000  gd_barnes  Complete 562,000  600,000  Cruelty  Complete 600,000  624,000  VBCurtis  Complete 624,000  645,000  Karsten  Complete Sieved through p=10T 645to648.txt 331 648to651.txt 320 651to654.txt 335 654to657.txt 350 657to660.txt 334 Please reserve the lowest range available. Thanks! If you would like to verify any results, the completed lresults.txt file can be found at http://www.15k.org/210885/lresults210885.txt Last fiddled with by Kosmaj on 20080103 at 10:49 
20031124, 21:53  #2 
Jul 2003
Thuringia; Germany
2·29 Posts 
I´m testing the "235 to 240"numbers.

20031124, 22:00  #3  
Aug 2002
Minneapolis, MN
2^{2}·3·19 Posts 
Quote:
I hope you find a prime in your range 

20031125, 16:01  #4 
Aug 2002
Minneapolis, MN
228_{10} Posts 
We have a new largest 15k prime!!!!
210885*2^3156391 is prime! It's 95,023 digits long, and will go into the top 5000 list in spot #413 Last fiddled with by SlashDude on 20031125 at 16:08 
20031125, 17:45  #5 
Jun 2003
3047_{8} Posts 
congrats
Lets now make it to the top 100 primes.
Citrix Last fiddled with by Citrix on 20031125 at 17:45 
20031125, 20:39  #6  
Aug 2002
Minneapolis, MN
2^{2}×3×19 Posts 
Re: congrats
Quote:
I added 4 ranges above my current search range so someone can try to find the next largest 15k prime! I don't want to add more ranges because I'm still sieving the larger n's. If you want to request a range, just let me know, and I'll be happy to set it up! FYI The reason I took the 300,000 to 330,000 range  I have a training class next week, so I needed to load up 2 machines for the long weekend, plus the first 3 days of next week... I never thought I would find a prime right in the middle of the 30k split! (at 315k) The top 100 primes: Currently the #100 prime on the top 5000 list is 193876 digits. We will be in this range when we start testing n>645900. I know we will get there the only question is who will find the first top 100 prime? (...lets work on the smaller ranges first, till the larger ones are sieved ) Last fiddled with by SlashDude on 20031125 at 20:45 

20031126, 18:11  #7 
Aug 2002
Minneapolis, MN
2^{2}×3×19 Posts 
ET_ found a 210885 prime yesterday! Congratulations on 210885*2^2953351 is prime!
I found another one today  210558*2^3016651 is also prime! 
20031127, 21:10  #8 
Jul 2003
Thuringia; Germany
2·29 Posts 
I´m testing now the range 255270, too.

20031128, 15:56  #9 
Sep 2002
2·131 Posts 
I*m starting range 270275
Joss 
20031201, 12:41  #10 
Nov 2003
2×1,811 Posts 
Hello, I'm new here but I'll try to help as much as I can. The 330340 range is mostly done, I'll report results tomorrow because I cannot access those machines now.
To keep another box busy I'd like to reserve the 340345 range too. 
20031202, 09:15  #11 
Nov 2003
2×1,811 Posts 
Processing of the 330340 range is completely done: No primes found.
Crunching the guys in the 340345 range is under way and I'd like to reserve the 350355 range too (just noticed that SlashDude got 345350). Last fiddled with by Kosmaj on 20031202 at 09:19 
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