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-   -   Riesel Primes k*2^n-1, k<300 [Part II] (https://www.mersenneforum.org/showthread.php?t=8621)

 MooMoo2 2010-09-26 18:11

1 Attachment(s)
k=161 is complete to n=1118K. No primes found.

I've attached the results from my last update (at n=1060K) to this point.

 MooMoo2 2010-09-28 17:31

Reserving k=93.

 Cruelty 2010-09-30 20:01

Status report

k=25 tested till n=2.43M
k=43 tested till n=2.34M
k=101 tested till n=2.58M
k=151 tested till n=2.48M
k=223 tested till n=2.63M

 pb386 2010-10-12 12:06

k=19 tested to n=2.21M

 VBCurtis 2010-10-13 04:22

[QUOTE=pb386;233217]k=19 tested to n=2.21M[/QUOTE]

Uhhhh.... you tested 1.5M to 2.2M in FIVE WEEKS?
:bow:
:shock:

-Curtis

 pb386 2010-10-13 12:35

[QUOTE=VBCurtis;233283]Uhhhh.... you tested 1.5M to 2.2M in FIVE WEEKS?
:bow:
:shock:

-Curtis[/QUOTE]

There were some bits that had already been tested but there were 10,224 tests taking about 52 million seconds on 18 cores (which is about 5 weeks).

 Retep 2010-10-19 19:42

Reserving k=51 starting at n=2.5 M

 VBCurtis 2010-10-20 03:15

[QUOTE=Retep;233903]Reserving k=51 starting at n=2.5 M[/QUOTE]

If you are only interested in huge primes, I'm sure someone will fill in the gap- but consider testing from our current status at 1M.
-Curtis

Edit- Heck, I'll probly start filling the gap in Jan or Feb if nobody else does...

 VBCurtis 2010-10-20 03:34

The dozen cores I have working on k=127 are almost finished with their work to 4M, the end of my sieve. I'll have resources for these reservations in the next few weeks.

Reserving k=93 and k=111 again.
Full status update coming soon.
-Curtis

 Retep 2010-10-20 21:28

If you are only interested in huge primes, I'm sure someone will fill in the gap- but consider testing from our current status at 1M.
-Curtis

Edit- Heck, I'll probly start filling the gap in Jan or Feb if nobody else does...[/QUOTE]

You are right, at the moment I am only interested in a huge find.. feel free to take 1M to 2.5M if you wish to do so.

 MooMoo2 2010-10-20 22:26

[QUOTE=VBCurtis;233950]
Reserving k=93 and k=111 again.
[/QUOTE]
That conflicts with a previous reservation:

[URL]http://www.mersenneforum.org/showpost.php?p=231788&postcount=390[/URL]

But that's OK, you can have k=93 since I haven't started working on it yet.

 VBCurtis 2010-10-21 05:23

Oh, sorry moomoo- I didn't see it colored on the 15k.org page. I certainly won't test it if you are going to- I can pick something else. Your choice- I won't be starting on the new picks until sometime in november anyway. If you'd like 93, I can work on Retep's k=51 gap from 1M.
-Curtis

 MooMoo2 2010-10-21 08:19

1 Attachment(s)
k=161 is complete to n=1210K. No primes found, and I've attached the lresults file from my last update (at n=1118K) to this point.

Curtis, I'll release k=93 so you can test it. That k is a bit too heavy for my taste.

 VBCurtis 2010-10-28 04:38

Update.

It has somehow been over 6 months since my last update. Previous status in parens:
k=11 2.18M (2.1M)
k=13 2.18M (2.12M)
k=45 1390-1540k, 1600-1750k complete. 1300-1390 hole on 4 cores now.
k=99 1.66M (1.6M)
k=109 1.35M (1.1M)
k=131 1.1M (1.0M)
k=211 1.36M (1.0M)
k=263 1.33M (1.1M)
k=269 1.6M (1.5M)
k=281 1.12M (1.0M)
k=405 1.0M
No progress on 127, 201, 245, 443. 127 should be complete to 4M and released in Jan. 269 should be complete to 2M and released in December.
-Curtis

 Kosmaj 2010-10-31 12:17

Recent Progress

k=9 at 1840k
k=21 at 1.5M
k=37 at 1710k
k=95 at 1150k
k=97 at 1360k

The latest status of all k<300 available [URL="http://www.15k.org/riesellist.html"]here[/URL]

 Cruelty 2010-10-31 14:05

Status report

k=25 tested till n=2.44M
k=43 tested till n=2.38M
k=101 tested till n=2.62M
k=151 tested till n=2.51M
k=223 tested till n=2.67M

 MooMoo2 2010-11-02 05:49

1 Attachment(s)
k=161 is complete to n=1260K. No primes found, and I've attached the results.

 Cruelty 2010-11-08 21:59

I reserve k=73 from n=1M using latest RSP sieve file :smile:

 em99010pepe 2010-11-10 08:11

[QUOTE=Cruelty;236164]I reserve k=73 from n=1M using latest RSP sieve file :smile:[/QUOTE]

New file available. pmin ~275T

 Cruelty 2010-11-19 22:02

I release k=73 @ n=1.09M.
I reserve k=55 from n=1.3M based on latest RSP sieve file.

 Cruelty 2010-11-23 21:46

I reserve k=83 from n=1.12M based on latest RSP sieve file.

 em99010pepe 2010-11-23 23:03

I reserve k=75

 MooMoo2 2010-11-27 18:56

1 Attachment(s)
k=161 is complete to n=1345K. No primes found :sad:

I've attached the results.

 em99010pepe 2010-11-28 19:03

[QUOTE=em99010pepe;238414]I reserve k=75[/QUOTE]

I release k=75.

 Cruelty 2010-11-30 22:11

Status report

k=25 tested till n=2.46M
k=43 tested till n=2.42M
k=55 tested till n=1.32M
k=83 tested till n=1.13M
k=101 tested till n=2.66M
k=151 tested till n=2.55M
k=223 tested till n=2.72M

 em99010pepe 2010-12-01 20:03

Finally managed to set up the llrnet server. Reserving again k=75 from 1.15M.

 em99010pepe 2010-12-04 21:23

[QUOTE=em99010pepe;239521]Finally managed to set up the llrnet server. Reserving again k=75 from 1.15M.[/QUOTE]

I tested it to 1.16M, releasing.

 amphoria 2010-12-06 18:56

k=227 is tested to n=1.4M. I am releasing this k.

Reserving k=49 from n=1.4M.

 MooMoo2 2010-12-14 21:12

1 Attachment(s)
k=161 is complete to n=1420K, and the results are attached.

No primes were found.

 Kosmaj 2010-12-23 01:37

k=9 in the 1840-1968 range completed by Larry, and k=9 is now at n=2106k.
No new primes found.

 Cruelty 2010-12-23 10:41

Releasing k=83 @ n=1.2M.
I reserve k=89 from n=1.12M based on latest RSP sieve file.

 Cruelty 2011-01-03 10:29

k=25 tested till n=2.49M
k=43 tested till n=2.47M
k=55 tested till n=1.38M
k=89 tested till n=1.14M
k=101 tested till n=2.71M
k=151 tested till n=2.59M
k=223 tested till n=2.79M

 Kosmaj 2011-01-13 05:02

Current Status

k=7 at 2670k
k=21 at 1525k
k=37 at 1760k
k=97 at 1500k
k=163 at 1120k

Proceeding with first four, while k=163 is stopped and released.

 Cruelty 2011-01-13 08:43

I release k=55 @ n=1.41M.

 MooMoo2 2011-01-14 05:20

1 Attachment(s)
k=161 is complete to n=1500K, and the results are attached.

No primes were found.

 pb386 2011-01-14 09:47

k=19 tested to n=2.5M

 otutusaus 2011-01-14 15:17

I am thinking on exploring a k<300, but I wouldn't like redoing someone else's job. So I was trying to see which k's are available to pick one I like. I initially checked the tables/lists in [URL="http://www.15k.org/riesellist.html"]here[/URL] and [URL="http://www.15k.org/RPSotherRanges.html"]here[/URL] and then tried to match the data with the some of the last posts in this 17-pages (!!!) thread. However, even like that, not being able to find an updated complilation, I have the feeling I might be stepping in someone else's feet.
Could you point me to an updated list?

 otutusaus 2011-01-14 17:25

Also, where can I find a sieved list, or do I sieve myself? Thanks.

 VBCurtis 2011-01-14 19:17

[QUOTE=otutusaus;246336]I am thinking on exploring a k<300, but I wouldn't like redoing someone else's job. So I was trying to see which k's are available to pick one I like. I initially checked the tables/lists in [URL="http://www.15k.org/riesellist.html"]here[/URL] and [URL="http://www.15k.org/RPSotherRanges.html"]here[/URL] and then tried to match the data with the some of the last posts in this 17-pages (!!!) thread. However, even like that, not being able to find an updated complilation, I have the feeling I might be stepping in someone else's feet.
Could you point me to an updated list?[/QUOTE]

The first link you have there is our most updated list. Kosmaj updates that page every few weeks; with the holidays it has been a little longer than normal. With that delay in mind, you need only consult this thread's posts since the date posted at the top of that riesellist page.

Sieving has been done by the primesearchteam forum. You can either register over there and get the files from the source, or simply PM me your email address and the k you wish a sieve file for. Sieves are available from n=1 to n=3M and k=5 to k=10,000 at this time.
-Curtis

 otutusaus 2011-01-15 15:16

I join the quest!
I am taking k=165 starting @ n=1M.

 Kosmaj 2011-01-15 15:58

I just updated the [URL="http://www.15k.org/riesellist.html"]k<300 status[/URL], including the latest reservation by otutusaus!

 Cruelty 2011-01-31 09:11

status report

k=25 tested till n=2.5M
k=43 tested till n=2.5M
k=89 tested till n=1.25M
k=101 tested till n=2.73M
k=151 tested till n=2.62M
k=223 tested till n=2.82M

 Thomas11 2011-02-04 11:41

Taking k=191 from n=1M.

 VBCurtis 2011-02-06 02:55

K's with meaningful progress:
45 at 1.55M
211 at 1.41M
245 at 1.22M
281 at 1.18M
443 at 1.40M

I have been testing a lot of RPS drive files, at the expense of my previous goals for 127 and 269. I plan to finish 263,245,281 to 1.4M this winter and release them. Anyone is welcome to reserve those any time starting at 1.4M.

-Curtis

 MooMoo2 2011-02-14 20:04

1 Attachment(s)
k=161 is complete to n=1560K. There were no other primes found besides the 161*2^1553570-1 prime that I reported a few days ago.

I'm releasing this k, and the results are attached.

 VBCurtis 2011-02-23 18:39

263 complete to 1.4M and released.

 Retep 2011-02-27 19:30

I started to test the range k=51, n = 2.5M to 3.3M at 19 Oct 2010.

More than 20% finished, no primes.

 Cruelty 2011-02-28 20:15

Status report

k=25 tested till n=2.52M
k=43 tested till n=2.52M
k=89 tested till n=1.34M
k=101 tested till n=2.75M
k=151 tested till n=2.64M
k=223 tested till n=2.84M

 Kosmaj 2011-03-05 06:52

The [URL="http://www.15k.org/riesellist.html"]k<300 status page[/URL] updated with latest primes and results.

 amphoria 2011-03-05 10:17

k=49 tested to n=1.55M

 Kosmaj 2011-03-05 13:18

Recent Progress

k=7 at 2710k
k=21 at 1575k
k=37 at 1870k
k=97 at 1600k

 Thomas11 2011-03-07 20:16

k=191 is now at n=2M.

 Cruelty 2011-03-14 08:22

releasing k=89 @ n=1.4M
reserving k=79

 Kosmaj 2011-03-15 02:23

Larry reserved k=75 from n=1160k.

 Cruelty 2011-03-31 18:52

Status report

k=25 tested till n=2.54M
k=43 tested till n=2.54M
k=79 tested till n=1.19M
k=101 tested till n=2.77M
k=151 tested till n=2.66M
k=223 tested till n=2.88M

 pb386 2011-04-05 12:44

k=19 tested to n=3M

 Kosmaj 2011-04-05 13:02

Peter, k=19 at 3M, that's great!!

Can you consider now switching to k=9 from n=2106k, setting the target at 3M.
It's already tested (by you!) in the n=2366487-2406243 range.

Of course, if you wish, you can keep on testing k=19.

Thanks.

 Kosmaj 2011-04-05 13:15

Peter,

If you decide to switch to k=9, and if are using the sieve file provided by Psieve, please note that they keep even exponents in the sieve file. However, 9*2^2k-1 is a difference of two squares and cannot be prime. Therefore, before starting tests, please remove all even exponents from the input file. You can do that easily using the grep command.

 pb386 2011-04-05 17:17

Yes, that sounds great. I am happy to give k=19 a rest now & have a go at k=9. Thanks for the reminder about the even numbers too!

 Thomas11 2011-04-05 18:00

k=191 also tested to n=3M, continuing...

 VBCurtis 2011-04-08 21:41

281 complete to 1405k, released.
111 at 1.09M
245 at 1.29M
269 at 1.8M
443 at 1.5M
-Curtis

 Kosmaj 2011-04-12 11:51

k<300 Status

k=7 at 2730k
k=21 at 1590k
k=37 at 1950k
k=77 at 1360k
k=97 at 1670k

Larry tested k=75 in the 1160000-1652100 range (except 1350-1400k already tested before by SlashDude). 1652060-1659823 already tested by Peter, therefore k=75 is now at 1659823.

The [URL="http://www.15k.org/riesellist.html"]k<300 status page[/URL] updated with these and all other recent results and changes.

 otutusaus 2011-04-21 13:38

Status report

k=165 tested till n=1.28M

Found 3 primes in this range:
165*2^1036898-1
165*2^1162671-1
165*2^1235490-1

 lsoule 2011-04-21 15:26

Reserving k=75 from 1659823 on.

 Kosmaj 2011-04-21 23:44

Peter reserved k=63 starting from n=1130k.

 otutusaus 2011-04-22 12:35

Reserving

Taking k=195 from n=1M.

 Beyond 2011-04-23 00:12

Taking 119 & 125 from 1M

299 currently being tested in the 1.5M range - continuing to at least 2M

 Kosmaj 2011-04-25 02:21

Beyond expressed interest in k=85 and 91 currently reserved by me. I'm releasing them and reserving them by RPS. Beyond, they are yours!

The plan is to test all k<300 to n=2M by slowly increasing the limit (n_max) of all Ks beginning with small ones. We'll start the 2nd megabit drive featuring Ks between k=100 and k=200 now at n=1M soon. For individual reservations please consider k>200 (for the time being).

 Beyond 2011-04-25 02:23

1 Attachment(s)
K=119 complete to 1300k (2 primes found) results attached and releasing this k

Taking k= 73 & 95

Also taking 85 & 91

 Kosmaj 2011-04-25 02:29

At the same time we'd like to push gradually very small Ks (k<20) towards n=3M.

k=5 and k=19 are already there!

 VBCurtis 2011-04-25 06:25

Before you start the new drive, I would like any one of the k's under 200 I had previously tested. Those are 149,179,197- I don't care much which.

Is this possible?

Also, I have 5 or 6 cores working on 11 and 13 until 3M. I expect 2.4M in May, and hope for 2.6M by end of summer.
-Curtis

 Chaos13 2011-04-25 06:33

Reserving k=213 from 1M on, if possible.
- Kristine

 Kosmaj 2011-04-25 07:14

Curtis, if you mean one among those three, then how about k=197 (now at 1.2M) ?

Kristine, k=213 is yours! Let me know if you need the input file.

 Beyond 2011-04-26 02:10

Taking 209, 125 should finish during the night/early morning hours.

 Kosmaj 2011-04-26 04:30

okay, I just uploaded the latest [URL="http://www.15k.org/riesellist.html"]k<300 status[/URL] including latest primes, and new reservations.

 Beyond 2011-04-26 22:24

1 Attachment(s)
125 complete to 1300k (no primes) and released

 VBCurtis 2011-04-27 18:49

Thanks Kosmaj, I am quite happy to test 197. Reserved!
I aim to get all my k<300 work to 1.4M by summer.
-Curtism

 Beyond 2011-04-27 21:59

Taking 247

 Beyond 2011-04-29 09:50

209 is at 1.3M

Taking 163 & 243

 pb386 2011-05-01 21:42

k=63 tested to 1653k

3 primes found:
63*2^1357156-1
63*2^1535612-1
63*2^1626259-1

 Kosmaj 2011-05-02 00:51

k=63

Peter, that was fast :smile: and congrats on nice primes.

k=63 already tested in the 1653-1672 range, therefore it's now at n=1672k.
Peter, if you plan to stop testing k=63 now, can you at least do 1672-1700 so that we reach a nice, rounded milestone at 1700k. Thanks!

 Beyond 2011-05-07 02:48

73 tested to 1.6M
247 tested to 2.0M (1 prime)
85 tested to 1.3M
91 tested to 1.3M
95 tested to 1.3M

 Kosmaj 2011-05-07 03:28

Beyond

Thanks for the report. Are you still working on all these Ks (including k=209), or releaseing some?

 Beyond 2011-05-07 04:05

Still working on them

 Thomas11 2011-05-07 20:19

k=191 tested to 3.2M. Next stop one million digits...

 pb386 2011-05-09 12:53

[QUOTE=Kosmaj;260179]Peter, that was fast :smile: and congrats on nice primes.

k=63 already tested in the 1653-1672 range, therefore it's now at n=1672k.
Peter, if you plan to stop testing k=63 now, can you at least do 1672-1700 so that we reach a nice, rounded milestone at 1700k. Thanks![/QUOTE]

OK, I've tested k=63 up to 1.7M. No more primes found.
I'm stopping testing k=63.

 otutusaus 2011-05-14 12:34

1 Attachment(s)
k=165 complete to 1500k (4 primes)
Results attached and releasing this k.
Working now on k=195.

 otutusaus 2011-05-14 12:38

1 Attachment(s)
Continuation of the last post as the results file didn't fit in a single 244.1 zip file

 Kosmaj 2011-05-14 15:33

Hi Oscar,
My WinZip can open the archive and list the file, but reports an error ("not in the standard zip 2.0 format") when I try to extract it. Can you try another zip application, or use gzip, or rar or something similar?

 Beyond 2011-05-15 02:33

1 Attachment(s)
243 @ 1300k (no primes) released
163 @ 1600k still working on this one.

 otutusaus 2011-05-17 00:58

I used 7z to zip it. It works with this software.
Let me know whether you manage to get the data.

[QUOTE=Kosmaj;261423]Hi Oscar,
My WinZip can open the archive and list the file, but reports an error ("not in the standard zip 2.0 format") when I try to extract it. Can you try another zip application, or use gzip, or rar or something similar?[/QUOTE]

 Kosmaj 2011-05-17 02:54

okay, I got it, it's a zip file compresed using 7z, so WinZip was confused :-)

Thanks for the results, and congrats again on nice primes!

 lsoule 2011-05-17 17:23

k=75 tested up to n=1.8M and continuing

 Cruelty 2011-06-01 15:45

status report

k=25 tested till n=2.59M
k=43 tested till n=2.59M
k=79 tested till n=1.45M
k=101 tested till n=2.82M
k=151 tested till n=2.69M
k=223 tested till n=2.93M

 VBCurtis 2011-06-02 05:52

11 at 2.41M- thanks to Thomas who tested 2300-2400k long ago.
13 at 2.29M
93 at 1.29M
109 at 1.4M
131 at 1.18M, also 1.23M-1.4M complete
211 at 1.51M
245 at 1.4M
269 at 1.85M
405 at 1.1M

111 and 201 have 3 cores each to reach 1.4M; 13 has 4 cores until 2.6M. All others have 1-2 cores to reach 1.4M.
-Curtis

 pb386 2011-06-02 19:47

k=9 tested up to n=3M
No new primes

 Kosmaj 2011-06-04 03:44

Recent Progress

k=7 at n=2770k
k=21 at 1750k (I reached 1647k, and 1647-1750 was already tested before)
k=35 at 1780k
k=37 at 2M

I've just updated the [URL="http://www.15k.org/riesellist.html"]k<300 status[/URL].

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