Added [URL="http://primes.utm.edu/primes/page.php?id=119021"]119021[/URL] : 759*2^1387869-1 (417794 digits)

Lennart

831*2^1386482-1 is prime! (port 2000/14th Drive)

Note that this was reported by Gary at the top-5000 site since I missed reporting it for a few weeks (I wasn't checking my NPLB email over the Christmas holiday). I'm not going to bother requesting an official transfer of credit there since I delayed so long. I've been getting a steady enough stream of primes from this drive...one less won't hurt. :smile:

[URL="http://primes.utm.edu/primes/page.php?id=119116"]555*2^1395429-1 is prime![/URL]

Added [URL="http://primes.utm.edu/primes/page.php?id=119170"]119170[/URL] : 573*2^1397559-1 (420710 digits)
From port 9000.

[URL="http://primes.utm.edu/primes/page.php?id=119272"]695*2^1390636-1[/URL] is prime! (port 2000/14th Drive)

[URL="http://primes.utm.edu/primes/page.php?id=119273"]515*2^1398708-1 is Prime![/URL]

A user named "composite" found a prime on port 1468. Composite, let us know if you need help reporting it.

Edit: Composite has reported 325*2^2024035-1 is prime.

873*2^1394076-1 from port 2000

[URL="http://primes.utm.edu/primes/page.php?id=119669"]549*2^1406577-1 is prime![/URL] (423425 digits)
No joke! :smile:

[URL="http://primes.utm.edu/primes/page.php?id=119688"]543*2^1406895-1 (423521 digits) is prime[/URL]

"composite" found a prime for k=319 on April 8th. He still needs to report it.

457*2^1413589-1 is prime

[URL="http://primes.utm.edu/primes/page.php?id=119996"]119996[/URL] : 555*2^1414837-1 (425912 digits)

473*2^1418790-1 is prime

[url=http://primes.utm.edu/primes/page.php?id=120114]825*2^1402592-1[/url] is prime! :smile: (port 2000/14th Drive)

Yup, still here. Most of my boxes are offline for the summer but I've got the one i5 (formerly Sandy Bridge, recently upgraded to Haswell after my remarkably bad luck with CPU/mobo failures, second only to Gary's, struck again) continuing steadily on port 2000. Probably sometime in August I'll be resuming my CRUS contributions on port 1300.

Two primes, both found on port 2000 (14th drive):

[URL="http://primes.utm.edu/primes/page.php?id=120149"]643*2^1403415-1[/URL]
[URL="http://primes.utm.edu/primes/page.php?id=120150"]605*2^1404118-1[/URL]

529*2^1421561-1 is prime

[URL="http://primes.utm.edu/primes/page.php?id=120201"]441*2^1422099-1 is Prime![/URL]

[url=http://primes.utm.edu/primes/page.php?id=120364]771*2^1409165-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=120419]723*2^1410870-1[/url] is prime! (port 2000/14th drive)

[URL="http://primes.utm.edu/primes/page.php?id=120488"]429*2^1428961-1 (430163 digits)[/URL] is prime!

[url=http://primes.utm.edu/primes/page.php?id=120833]989*2^1418056-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=120872]805*2^1418871-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=120950]973*2^1420727-1[/url] is prime (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=121509]783*2^1425060-1[/url] is prime! (port 2000/14th drive)

[URL="http://primes.utm.edu/primes/page.php?id=121622"]653*2^1428280-1[/URL] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=121914]957*2^1435600-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=121974]619*2^1436227-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=122013]993*2^1437131-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=122124]951*2^1438430-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=122166]685*2^1438521-1[/url] is prime! (port 2000/14th drive)

[url=http://primes.utm.edu/primes/page.php?id=122258]741*2^1441006-1[/url] is prime! (port 2000/14th drive)

[URL="http://primes.utm.edu/primes/page.php?id=122454"]499*2^1434643-1[/URL] is prime!

Two primes from port 2000:

[url=http://primes.utm.edu/primes/page.php?id=122544]623*2^1445836-1[/url]
[url=http://primes.utm.edu/primes/page.php?id=122545]685*2^1446421-1[/url]

Henry,

You either found two real fast primes close together or you have another bad machine producing erroneous primes. Can you check on that?


Thanks,
Gary

[QUOTE=gd_barnes;448411]Henry,

You either found two real fast primes close together or you have another bad machine producing erroneous primes. Can you check on that?


Thanks,
Gary[/QUOTE]

Checking the primes. It is the same machine. I was certain that it was fixed after a bios update. Either I have been lucky or that isn't the case.
When I double checked the work on my own server(about a weeks work ~1000 tests) there were two mismatches(both wrong the first time before the bios update). Even then it was fairly stable.
I was watching amazon prime yesterday evening. It is possible that this is related to hardware decoding at the same time. Not certain that the times match up completely.

I might have to just keep this machine off public servers as the problem seems to be false primes.

Both "primes" tested composite with a prp test. This is getting frustrating. What sort of testing do I need to do to confirm that this pc is stable? The errors are so infrequent.

[QUOTE=henryzz;448474]Checking the primes. It is the same machine. I was certain that it was fixed after a bios update. Either I have been lucky or that isn't the case.
When I double checked the work on my own server(about a weeks work ~1000 tests) there were two mismatches(both wrong the first time before the bios update). Even then it was fairly stable.
I was watching amazon prime yesterday evening. It is possible that this is related to hardware decoding at the same time. Not certain that the times match up completely.

I might have to just keep this machine off public servers as the problem seems to be false primes.

Both "primes" tested composite with a prp test. This is getting frustrating. What sort of testing do I need to do to confirm that this pc is stable? The errors are so infrequent.[/QUOTE]
What is that two "primes"? ( if I may know)?

[QUOTE=pepi37;448483]What is that two "primes"? ( if I may know)?[/QUOTE]

I suppose these two:

1000000000:M:1:2:258
529 1440053
429 1440063

from

[URL]http://www.noprimeleftbehind.net/stats/index.php?content=port[/URL]

edit:
529*2^1440053-1 is not prime. LLR Res64: 3036F257192A31EA Time : 785.791 sec.
429*2^1440063-1 is not prime. LLR Res64: FF7F05B3A32F301C Time : 781.643 sec.

Yes those are the two "prime" composites that were reported to me.

Henry, would it be possible for you to post a list of tests done by that machine since the last time that you had the problem? We will attempt to delete the k/n pairs from the server and re-add them so that they can be retested. Thanks.

It's David, actually.

[SPOILER]"[I [B]am[/B] serious]...and stop calling me Shirley" (c) Airplane.[/SPOILER]

[QUOTE=Batalov;448515]It's David, actually.

[SPOILER]"[I [B]am[/B] serious]...and stop calling me Shirley" (c) Airplane.[/SPOILER][/QUOTE]

But it says to just call him Henry!

I mean, you could call me Mike if you wished, but folks would get confused.
-mike curtis

[QUOTE=VBCurtis;448517]But it says to just call him Henry!

I mean, you could call me Mike if you wished, but folks would get confused.
-mike curtis[/QUOTE]


So it look like same person has [SPOILER]few names[/SPOILER] :smile:

[QUOTE=VBCurtis;448517]But[B] it[/B] says to just call him Henry![/QUOTE]
That is exactly right![B] It[/B]. (Because it is not the users who write those [STRIKE]cursed[/STRIKE] cursive lines.)

As the old Soviet joke goes, "In [STRIKE]the USSR[/STRIKE] this forum, all is created for the man and all is for the love of man and for the sake of man ... And I [B]saw[/B] that man!!" :rolleyes:

It is all tests by me since tests were removed last time.
I am pretty certain 99+% of them are perfectly good. In fact I suspect I may be stable apart from when using hardware decoding(very rare). I have run several days stress testing and a successful gimps double check.
I would imagine it is more stable than some who have submitted pairs during races with distributed computing routes(overclocked pcs etc).
How accurate do we need?
I would be very interested in knowing the results of a doublecheck of the results returned by this pc.

[URL="http://primes.utm.edu/primes/page.php?id=123261"]513*2^1452354-1 is prime![/URL]

[url=http://primes.utm.edu/primes/page.php?id=123285]617*2^1451432-1 is prime![/url]

The Prime Pages site warned me when I submitted that at the current rate primes are being added, this will be pushed off the list in about 40-50 or so weeks. Has anyone run the numbers to make sure we're staying ahead of that curve? (Ports 2000 and 9000 are tracking pretty close in [i]n[/i] right now and have similar resources on them, so they'll both be in the same boat.)

If need be, I can shift some resources over from CRUS 1400 to give one or both ports a boost. Right now I have 1 Haswell on 2000, and 4 more on 1400 (+2 Nehalems, but they don't count for much these days so I wouldn't bother moving them).

[QUOTE=mdettweiler;456780][URL="http://primes.utm.edu/primes/page.php?id=123285"]617*2^1451432-1 is prime![/URL]

The Prime Pages site warned me when I submitted that at the current rate primes are being added, this will be pushed off the list in about 40-50 or so weeks. Has anyone run the numbers to make sure we're staying ahead of that curve? (Ports 2000 and 9000 are tracking pretty close in [I]n[/I] right now and have similar resources on them, so they'll both be in the same boat.)

If need be, I can shift some resources over from CRUS 1400 to give one or both ports a boost. Right now I have 1 Haswell on 2000, and 4 more on 1400 (+2 Nehalems, but they don't count for much these days so I wouldn't bother moving them).[/QUOTE]

At position 2500 that seems unlikely. The calculation is likely done based on the number of digits in the 5000th prime. Since there are so many n=1290000 primes that it skews the calculation.

I expect it to be longer than that.

On the "[URL="http://www.noprimeleftbehind.net/stats/index.php?content=drive_progress"]Drive Progress[/URL]" chart, the red line shows the lower limit of the top 5000.
It is is updated daily based on an update from the top 5000 page.
It is actually a complex curve but it looks fairly straight on this scale.

Also on the "[URL="http://www.noprimeleftbehind.net/stats/index.php?content=prime_list"]Prime List[/URL]" page you will see the second line of the description currently says
"Last updated minimum size for the Top5000 database is 388342 digits."

This number of digits of the smallest prime in the top 5000 is updated daily at the same time as the red line on the chart.

HTH

[QUOTE=gd_barnes;457138]Since there are so many n=1290000 primes that it skews the calculation.[/QUOTE]
Not so many anymore. Used to be 2900, now less than 200 and shrinking, and in a couple of months they will be all gone from top5k, except those that were collected into AP[SUB]3[/SUB]s, the SG pair and the twin pair. I wonder if they will continue running them, just like they still run GFN"15"s.

_______________
"We choose to go to the [STRIKE]moon[/STRIKE] neighborhood mall not because it was hard, but because it was easy, because [STRIKE]that goal will serve to organize and measure the best of our energies and skills[/STRIKE] everyone gets a lolly!" (The new generation's modified and improved motto.)

Added [URL="http://primes.utm.edu/primes/page.php?id=123312"]123312[/URL] : 413*2^1456498-1 (438453 digits)

Someone with a user name of juhehe found a top-5000 prime on port 9000 over a week ago and it has not been reported. If anyone knows how to contact him please let me know.

[QUOTE=gd_barnes;458240]Someone with a user name of juhehe found a top-5000 prime on port 9000 over a week ago and it has not been reported. If anyone knows how to contact him please let me know.[/QUOTE]
You can find his email address in the PRPnet log files for port 9000 at: [url]http://www.noprimeleftbehind.net/prpnet/results/[/url]

OK thanks. I sent him an Email.

Added [URL="http://primes.utm.edu/primes/page.php?id=123352"]123352[/URL] : 591*2^1458622-1 (439092 digits)

[url=http://primes.utm.edu/primes/page.php?id=123359]843*2^1453392-1 is prime![/url]

Added [URL="http://primes.utm.edu/primes/page.php?id=123548"]123548[/URL] : 527*2^1468300-1 (442006 digits)

[COLOR=#000000][FONT=&quot]Added [/FONT][/COLOR][URL="http://primes.utm.edu/primes/page.php?id=123624"]123624[/URL][COLOR=#000000][FONT=&quot] : 765*2^1460683-1 (439713 digits)
[/FONT][/COLOR]

Two primes on port 9000 within an hour of each other, nicely breaking a slightly long dry streak of about n=10K:

Added [url=http://primes.utm.edu/primes/page.php?id=123649]123649[/url] : 545*2^1478786-1 (445162 digits)
Added [url=http://primes.utm.edu/primes/page.php?id=123650]123650[/url] : 559*2^1478821-1 (445173 digits)

[COLOR=#000000][FONT=&quot]Added [/FONT][/COLOR][URL="http://primes.utm.edu/primes/page.php?id=123679"]123679[/URL][COLOR=#000000][FONT=&quot] : 347*2^2245598-1 (675995 digits)
[/FONT][/COLOR]

Added [URL="http://primes.utm.edu/primes/page.php?id=123730"]123730[/URL]: 567 *2^1484069-1 (446753 digits)

Added [URL="https://primes.utm.edu/primes/page.php?id=123745"]123745[/URL]: 477*2^1489922-1 (448514 digits)

Three primes in the last few days:

Port 9000:
[URL="http://primes.utm.edu/primes/page.php?id=123753"]527*2^1489120-1[/URL]
[URL="http://primes.utm.edu/primes/page.php?id=123755"]595*2^1494593-1[/URL]

Port 2000:
[URL="http://primes.utm.edu/primes/page.php?id=123754"]955*2^1463821-1[/URL]

Added [URL="http://primes.utm.edu/primes/page.php?id=123785"]123785[/URL] : 551*2^1501694-1 (452058 digits)

Added [URL="http://primes.utm.edu/primes/page.php?id=123824"]123824[/URL] : 465*2^1504138-1 (452794 digits)

[COLOR=#000000][FONT=&quot]Added [/FONT][/COLOR][URL="http://primes.utm.edu/primes/page.php?id=123828"]123828[/URL][COLOR=#000000][FONT=&quot] : 759*2^1468175-1 (441968 digits)
[/FONT][/COLOR]

[QUOTE=Batalov;457372]Not so many anymore. Used to be 2900, now less than 200 and shrinking, and in a couple of months they will be all gone from top5k, except those that were collected into AP[SUB]3[/SUB]s, the SG pair and the twin pair. I wonder if they will continue running them, just like they still run GFN"15"s.

_______________
"We choose to go to the [STRIKE]moon[/STRIKE] neighborhood mall not because it was hard, but because it was easy, because [STRIKE]that goal will serve to organize and measure the best of our energies and skills[/STRIKE] everyone gets a lolly!" (The new generation's modified and improved motto.)[/QUOTE]
Alas (for the YGG), the 1290000-bit boundary is now in the past.

And this last of the Mohicans ought to be one the shortest-lived Top5000 primes!
[URL]http://primes.utm.edu/primes/page.php?id=123838[/URL]
[CODE]Entrance Rank (*): 5000
Currently on list? (*): no
Submitted: 8/12/2017 21:33:22 CDT
Removed (*): 8/12/2017 21:53:07 CDT[/CODE]

[QUOTE=Batalov;465434]Alas (for the YGG), the 1290000-bit boundary is now in the past.

And this last of the Mohicans ought to be one the shortest-lived Top5000 primes!
[URL]http://primes.utm.edu/primes/page.php?id=123838[/URL]
[CODE]Entrance Rank (*): 5000
Currently on list? (*): no
Submitted: 8/12/2017 21:33:22 CDT
Removed (*): 8/12/2017 21:53:07 CDT[/CODE][/QUOTE]

Excellent! It's nice to have their distorting presence gone.

To make the top 5000 [I]today[/I] a prime must have [B]388365[/B] digits or meet the size requirements for it's archivable form.
:max:

[QUOTE=pepi37;465446]To make the top 5000 [I]today[/I] a prime must have [B]388365[/B] digits or meet the size requirements for its archivable form.
[/QUOTE]
Even [URL="http://primes.utm.edu/primes/page.php?id=119628"]a 1017-digit prime[/URL] can be archivable, ...and believe me - it is going to stay in the short list for quite a while. :cool:

[QUOTE=Batalov;465448]Even [URL="http://primes.utm.edu/primes/page.php?id=119628"]a 1017-digit prime[/URL] can be archivable, ...and believe me - it is going to stay in the short list for quite a while. :cool:[/QUOTE]

Ah, special types of primes :smile: :razz:

[URL="http://primes.utm.edu/primes/page.php?id=123889"]741*2^1472086-1 is prime![/URL]

[QUOTE=gd_barnes;458240]Someone with a user name of juhehe found a top-5000 prime on port 9000 over a week ago and it has not been reported. If anyone knows how to contact him please let me know.[/QUOTE]

I noticed the prime too, admittedly some months ago.
I have to go and try to properly report it, I hope it is still possible.

We have exchanged a few emails already back in April the 1st, 2012 :)

[QUOTE=juhehe;468458]I noticed the prime too, admittedly some months ago.
I have to go and try to properly report it, I hope it is still possible.

We have exchanged a few emails already back in April the 1st, 2012 :)[/QUOTE]

That was 4 months ago. I responded to your PM about how to transfer the prime.

[QUOTE=gd_barnes;468514]That was 4 months ago. I responded to your PM about how to transfer the prime.[/QUOTE]

Thanks for holding the prime for me for the summer!

675* 2^1476887-1 is prime

[URL]http://primes.utm.edu/primes/page.php?id=123912[/URL]

My first NPLB prime in 39 months

Added [URL="http://primes.utm.edu/primes/page.php?id=123915"]123915[/URL] : 867*2^1477169-1 (444676 digits)

Added [URL="http://primes.utm.edu/primes/page.php?id=123939"]123939 [/URL]: 923*2^1480444-1 (445662 digits)

The following warnings have been noted:

At the rate at which primes have been added to this list in the past, the 445662 digit prime "923*2^1480444-1" may only be on the list for about 44 weeks.

[URL="http://primes.utm.edu/primes/page.php?id=123944"]http://primes.utm.edu/primes/page.php?id=123944 [/URL]

445764 digits
[URL="http://primes.utm.edu/primes/page.php?id=123944"][/URL]

[url]http://primes.utm.edu/primes/page.php?id=123945[/url]
449*2^1516108-1 is a prime with 456397 digits.

[B]627*2^1482485-1 is prime[/B]

[URL]http://primes.utm.edu/primes/page.php?id=123958[/URL]

446276 digits

Added [URL="http://primes.utm.edu/primes/page.php?id=123975"]123975[/URL] : 345*2^2313720-1 (696502 digits)

Nice prime! :smile:

Added [URL="http://primes.utm.edu/primes/page.php?id=123987"]123987[/URL] : 541*2^1519465-1 (457408 digits)

Two primes from port 2000:

Added [URL="http://primes.utm.edu/primes/page.php?id=124015"]124015[/URL] : 829*2^1484633-1 (446922 digits)
Added [URL="http://primes.utm.edu/primes/page.php?id=124016"]124016[/URL] : 801*2^1486133-1 (447374 digits)

[COLOR=#000000][FONT=&quot]Added [/FONT][/COLOR][URL="http://primes.utm.edu/primes/page.php?id=124064"]124064[/URL][COLOR=#000000][FONT=&quot] : 339*2^2336421-1 (703336 digits)
[/FONT][/COLOR]

Added [URL="http://primes.utm.edu/primes/page.php?id=124076"]124076[/URL] : 683*2^1491446-1 (448973 digits)

Added [URL="http://primes.utm.edu/primes/page.php?id=124107"]124107[/URL]

745*2^1494273-1 is prime 449824 digits

A couple primes that my machines piled up while I wasn't watching them too closely:

Added [URL="http://primes.utm.edu/primes/page.php?id=124166"]124166[/URL] : 975*2^1493869-1 (449703 digits)
Added [URL="http://primes.utm.edu/primes/page.php?id=124167"]124167[/URL] : 703*2^1494427-1 (449871 digits)

Added [URL="http://primes.utm.edu/primes/page.php?id=124170"]124170[/URL]

855*2^1498084-1 (450972 digits)
[URL="http://primes.utm.edu/primes/page.php?id=124170"][/URL]

Added [URL="http://primes.utm.edu/primes/page.php?id=124173"]124173[/URL] : 837*2^1498329-1 (451045 digits)

Added [URL="http://primes.utm.edu/primes/page.php?id=124285"]124285 :[/URL]691*2^1500869-1 (451810 digits)

Looks like I just re-discovered a prime on port 2000 that was previously picked up by the Free-DC Prime Search eight years ago:

[URL="http://primes.utm.edu/primes/page.php?id=92576"]907*2^1501169-1[/URL]

Does anyone know what ranges they searched in this area? My understanding is that they weren't intending to do a comprehensive search (just to find some primes), so we might be in for some hit-or-miss in the near future.

That has been an individual search by Burt not related with Free-DC drives, just the knowledge on the finding to FreeDC account.

See the first post of the 14th drive. There are only 2 more known primes after this one for k=600-1001 n=1.5M-2M. So you found a rarity.

The 13th drive has only one more known prime for k=400-600 n=1.5M-2M.

So not much hit-and-miss. :-)

Added [URL="http://primes.utm.edu/primes/page.php?id=124476"]124476[/URL] : 305*2^2358854-1 (710089 digits)

Looks like there are two top-5000 primes yet to report from 6 days ago. One from Max and one from Sashixi.

Interestingly there were 3 primes found within 2 hours of each other on Feb. 27th; by 3 different people. :smile:

[QUOTE=gd_barnes;481611]Looks like there are two top-5000 primes yet to report from 6 days ago. One from Max and one from Sashixi.

Interestingly there were 3 primes found within 2 hours of each other on Feb. 27th; by 3 different people. :smile:[/QUOTE]
And here's mine, belatedly:

[url=http://primes.utm.edu/primes/page.php?id=124503]691*2^1503141-1[/url]