Help test 210885 - Find a new top 5000 prime! - Page 9

lsoule · 2005-12-06, 18:46

Congrats! That was quite a gap from the last one :surprised

Kosmaj · 2005-12-07, 01:23

Congrats on a nice prime!

And on your patience, I think you spent hundreds of cpu hours to find it.
Well, I spent some too, and I came close with the 542-548k range

Maybe there are several primes waiting after the gap

Cruelty · 2005-12-07, 08:17

Thanks! Patience was a key to success here

Let's see who will find the next prime for this "k"

BTW: no other primes in 548to550 range

Cruelty · 2005-12-08, 12:53

550to552.txt completed - no primes

Joshua2 · 2006-02-03, 21:19

I will be gone for a while, so I will take 552to554.txt ; 554to556.txt ; 556to558.txt ; 558to560.txt

Joshua2 · 2006-03-06, 01:04

Completed, you might want to check none were skipped since files were merged manually.

nuggetprime · 2007-03-26, 11:47

Is this k still availabe?
Are there presieved files larger than 570k?

nuggetprime

Kosmaj · 2007-03-26, 13:05

Yes, it's available, and we have sieved values to n=1M. It was one of very promising Ks but after a large gap between the last two primes we stopped working on it. Still, there can be a few primes to 1M, but nobody knows...

Cruelty · 2007-03-26, 14:08

tempting

I've just noticed that it has ~100-120 candidates left per each range of 1000 - not bad, and LLR will use "irrational base DWT" instead of "zero-padded" so in the era of C2D CPUs it might take not too long to complete it till n=1M. Personally I think that there are at least 2 primes for 560000<n<1000000

nuggetprime · 2007-03-26, 15:55

Ok, I'm taking it to 1M.
Please post pre-sieved files or email them to me!

Thanks,
nuggetprime

VBCurtis · 2007-03-26, 17:58

Pre-sieved files are posted at the top of this thread. The 5 files there should take about a week on a modern P4. Work those 5 first, Kosmaj usually posts new files in that place as files are reserved. He'll keep up with you, don't worry.

Understand that 560k to 1M is a VERY large amount of work-- many CPU months.
-Curtis

2005-12-07, 01:23	#90
Kosmaj Nov 2003 3622₁₀ Posts	Cruelty Congrats on a nice prime! And on your patience, I think you spent hundreds of cpu hours to find it. Well, I spent some too, and I came close with the 542-548k range Maybe there are several primes waiting after the gap

2005-12-07, 08:17	#91
Cruelty May 2005 2³·7·29 Posts	Thanks! Patience was a key to success here Let's see who will find the next prime for this "k" BTW: no other primes in 548to550 range Last fiddled with by Cruelty on 2005-12-07 at 08:18

2007-03-26, 14:08	#97
Cruelty May 2005 2³×7×29 Posts	tempting I've just noticed that it has ~100-120 candidates left per each range of 1000 - not bad, and LLR will use "irrational base DWT" instead of "zero-padded" so in the era of C2D CPUs it might take not too long to complete it till n=1M. Personally I think that there are at least 2 primes for 560000<n<1000000 Last fiddled with by Cruelty on 2007-03-26 at 14:18

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Choose your own K and work on finding a top-5000 prime!	lsoule	Riesel Prime Search	416	2021-06-28 02:03
Test a Specific Exponent in Prime95. When it is 100% done, does it mean I find a new prime number?	king	Information & Answers	5	2018-02-21 18:15
Help test 2995125705 - Find a new top 5000 prime!	SlashDude	Riesel Prime Search	538	2007-05-08 01:42
The fastest way to a top-5000 prime?	lsoule	15k Search	13	2005-09-19 20:24
Beta user stats for Phase 2 - Test of 210885	SlashDude	15k Search	1	2003-12-16 23:09

2005-12-06, 18:46	#89
lsoule Nov 2004 California 2³×3×71 Posts	Congrats! That was quite a gap from the last one :surprised

2005-12-08, 12:53	#92
Cruelty May 2005 2³·7·29 Posts	550to552.txt completed - no primes

2006-02-03, 21:19	#93
Joshua2 Sep 2004 215₁₆ Posts	I will be gone for a while, so I will take 552to554.txt ; 554to556.txt ; 556to558.txt ; 558to560.txt

2007-03-26, 11:47	#95
nuggetprime Mar 2007 Austria 2·151 Posts	Is this k still availabe? Are there presieved files larger than 570k? nuggetprime

2007-03-26, 13:05	#96
Kosmaj Nov 2003 2×1,811 Posts	Yes, it's available, and we have sieved values to n=1M. It was one of very promising Ks but after a large gap between the last two primes we stopped working on it. Still, there can be a few primes to 1M, but nobody knows...

2007-03-26, 15:55	#98
nuggetprime Mar 2007 Austria 302₁₀ Posts	Ok, I'm taking it to 1M. Please post pre-sieved files or email them to me! Thanks, nuggetprime

2007-03-26, 17:58	#99
VBCurtis "Curtis" Feb 2005 Riverside, CA 4,861 Posts	Pre-sieved files are posted at the top of this thread. The 5 files there should take about a week on a modern P4. Work those 5 first, Kosmaj usually posts new files in that place as files are reserved. He'll keep up with you, don't worry. Understand that 560k to 1M is a VERY large amount of work-- many CPU months. -Curtis