FactorDB PRP's - Page 20

Puzzle-Peter · 2013-04-01, 19:42

After playing around just above 300 digits, I'll try to raise the limit on what I consider the "real trailing edge" i.e. 1976 digits. Let's see if I can get it to 2000 digits...

henryzz · 2013-04-01, 20:04

If you can get it past around 2030 then the number of prps drops massively. It might be possible to reach 3000 at some point this year.

Puzzle-Peter · 2013-04-02, 15:08

Quote:

Originally Posted by henryzz

If you can get it past around 2030 then the number of prps drops massively. It might be possible to reach 3000 at some point this year.

Thanks for the hint. I got tired of scrolling down so I didn't notice the drop. That's a lot of work. Let's see how high we can get.

On a side notice there seems to be a certificate of a 2636 digit number that has been being processed for days now. ID is 1100000000026675500

ChristianB · 2013-04-04, 10:56

I wrote a little script that does the zipping and simply upload one file with several certificates.

I usually download a zip with low digit PRPs (400-999 digits), 50 per subdirectory and load them into primo one directory after another. This way I can easily resume if primo hangs for no reason.

I would hereby reserve the 400-999 digits PRP range. I will download a zip every two days or so, that should keep the queue low.

Puzzle-Peter · 2013-04-05, 15:58

Quote:

Originally Posted by Puzzle-Peter

On a side notice there seems to be a certificate of a 2636 digit number that has been being processed for days now. ID is 1100000000026675500

It's still "processing". I think it needs a solid kick...

firejuggler · 2013-04-05, 16:08

one way would be to factor the N-1 or N+1... or better a Syd-vention

Puzzle-Peter · 2013-04-26, 19:34

Is there an easy way to find PRPs that would enable an N+1 or N-1 proof after being certified?

MyDogBuster · 2013-06-17, 06:51

Is there any list around showing who's working on what certificates. It's a bummer to complete a certificate and have it rejected because some else also worked on it and finished before you.

Puzzle-Peter · 2013-06-17, 17:21

Quote:

Originally Posted by MyDogBuster

Is there any list around showing who's working on what certificates. It's a bummer to complete a certificate and have it rejected because some else also worked on it and finished before you.

I am not aware of any such list. I am working on the 1980-2010 digits range atm.

MyDogBuster · 2013-06-17, 18:06

Quote:

I am not aware of any such list. I am working on the 1980-2010 digits range atm.

Thx, I'll work from 3000 backwards, with an occasional grab of the small ones. LOL

ChristianB · 2014-06-24, 11:50

I'm currently processing the small PRPs in batches of 200. I'll post when I'm finished. ETA per Batch is 1h at the current level.

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2013-04-01, 19:42	#210
Puzzle-Peter Jun 2009 2²×3²×19 Posts	After playing around just above 300 digits, I'll try to raise the limit on what I consider the "real trailing edge" i.e. 1976 digits. Let's see if I can get it to 2000 digits...

2013-04-01, 20:04	#211
henryzz Just call me Henry "David" Sep 2007 Cambridge (GMT/BST) 2³×3×5×7² Posts	If you can get it past around 2030 then the number of prps drops massively. It might be possible to reach 3000 at some point this year.

2013-04-04, 10:56	#213
ChristianB Apr 2013 Germany 311 Posts	I wrote a little script that does the zipping and simply upload one file with several certificates. I usually download a zip with low digit PRPs (400-999 digits), 50 per subdirectory and load them into primo one directory after another. This way I can easily resume if primo hangs for no reason. I would hereby reserve the 400-999 digits PRP range. I will download a zip every two days or so, that should keep the queue low.

2013-04-05, 16:08	#215
firejuggler Apr 2010 Over the rainbow 2³×5²×13 Posts	one way would be to factor the N-1 or N+1... or better a Syd-vention

2013-04-26, 19:34	#216
Puzzle-Peter Jun 2009 1010101100₂ Posts	Is there an easy way to find PRPs that would enable an N+1 or N-1 proof after being certified?

2013-06-17, 06:51	#217
MyDogBuster May 2008 Wilmington, DE 2²×23×31 Posts	Is there any list around showing who's working on what certificates. It's a bummer to complete a certificate and have it rejected because some else also worked on it and finished before you.

2014-06-24, 11:50	#220
ChristianB Apr 2013 Germany 311 Posts	I'm currently processing the small PRPs in batches of 200. I'll post when I'm finished. ETA per Batch is 1h at the current level.