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Old 2004-08-20, 14:51   #1
jocelynl
 
Sep 2002

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Default Low weight stats page.

Since <300k is almost completed, I would like to set up a page on low weight candidates of the form k*2^n-1 . If you could just tell me what work you have done on these. It would be nice not to duplicate work.

Joss

Last fiddled with by jocelynl on 2004-08-21 at 12:16
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Old 2004-08-23, 10:47   #2
Kosmaj
 
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Nov 2003

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I haven't done any work on low-weight k's but I was thinknig to propose that we process one real but small 15k to 1M like k=15, 45, 75 or 105. After sieving such k's produce too many candidates for a single cruncher to process, but potentially they hide a good deal of primes so if we do it together there are good chances that many of us will find a large prime. With the latest LLR-P4 I think it can be done in a reasonable amount of time. What do you say?
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Old 2004-08-23, 15:58   #3
jocelynl
 
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I guess Mark could set up a team for some low 15k like he has done with 210885 and 2995125705. With the new LLRP-4, k=15 seems a good choice. Robert has been working on it for some times. We should ask him for team work first.

Joss
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Old 2004-09-02, 10:44   #4
jocelynl
 
Sep 2002

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This is our first top5000 prime on Low Weight Candidate
3817*2^218917-1
It's a start!

Joss
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Old 2004-11-16, 19:54   #5
Thomas11
 
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I'm just announcing the find of two (big) primes of low weight k:

209826493*2^1140855-1 (ranking at position 50 of the Top-5000!)
209826493*2^1071303-1 (found a few months earlier)

-- Thomas L10
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Old 2004-11-16, 21:09   #6
Templus
 
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Jun 2004

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Wow thomas!!

Congratulations on your 2 big primes!!!! Good work!!!!

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Old 2004-11-17, 17:53   #7
jocelynl
 
Sep 2002

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These should had some weight to our project!
Great work Thomas !

Joss
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Old 2004-12-12, 15:35   #8
Thomas11
 
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How about another big one?

80857169*2^1251076-1 is prime!

-- Thomas L10
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Old 2004-12-12, 19:51   #9
jocelynl
 
Sep 2002

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Wow!

rank 37, whooo now we're talking.

congratulation

Joss
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Old 2004-12-18, 16:15   #10
Kosmaj
 
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Nov 2003

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Thomas, congrats any many huge primes!

BTW, can I reserve one k, just to try? I'm not sure how to read the table at the status page but if available I'd like to take k=32537227. It has no available data so I assume it's available(?) Can one reserve k's with some associated date in the table and/or provided sieve file?

Thanks and good luck!

Last fiddled with by Kosmaj on 2004-12-18 at 16:34
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Old 2004-12-18, 17:17   #11
jocelynl
 
Sep 2002

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Hi Kosmaj,

k=32537227 is all yours
I don't have any sieve file for it
It's not a very low weight at 2100 n's left at 20M but still a good choice.

Joss
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