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Old 2003-11-24, 19:22   #1
SlashDude
 
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Aug 2002
Minneapolis, MN

E416 Posts
Default 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 (right-click 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 e-mail 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, e-mail) 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
Available files
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 2008-01-03 at 10:49
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Old 2003-11-24, 21:53   #2
cyrix
 
Jul 2003
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I´m testing the "235 to 240"-numbers.
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Old 2003-11-24, 22:00   #3
SlashDude
 
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Quote:
Originally posted by cyrix
I´m testing the "235 to 240"-numbers.
Thanks cyrix!!

I hope you find a prime in your range
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Old 2003-11-25, 16:01   #4
SlashDude
 
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Minneapolis, MN

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We have a new largest 15k prime!!!!

210885*2^315639-1 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 2003-11-25 at 16:08
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Old 2003-11-25, 17:45   #5
Citrix
 
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Jun 2003

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Default congrats

Lets now make it to the top 100 primes.

Citrix

Last fiddled with by Citrix on 2003-11-25 at 17:45
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Old 2003-11-25, 20:39   #6
SlashDude
 
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Minneapolis, MN

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Default Re: congrats

Quote:
Originally posted by Citrix
Lets now make it to the top 100 primes.
Thanks!

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 2003-11-25 at 20:45
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Old 2003-11-26, 18:11   #7
SlashDude
 
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ET_ found a 210885 prime yesterday! Congratulations on 210885*2^295335-1 is prime!

I found another one today - 210558*2^301665-1 is also prime!
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Old 2003-11-27, 21:10   #8
cyrix
 
Jul 2003
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I´m testing now the range 255-270, too.
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Old 2003-11-28, 15:56   #9
jocelynl
 
Sep 2002

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I*m starting range 270-275

Joss
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Old 2003-12-01, 12:41   #10
Kosmaj
 
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Nov 2003

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Hello, I'm new here but I'll try to help as much as I can. The 330-340 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 340-345 range too.
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Old 2003-12-02, 09:15   #11
Kosmaj
 
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Nov 2003

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Processing of the 330-340 range is completely done: No primes found.

Crunching the guys in the 340-345 range is under way and I'd like to reserve the 350-355 range too (just noticed that SlashDude got 345-350).

Last fiddled with by Kosmaj on 2003-12-02 at 09:19
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