Report top-5000 primes for all k<=1001 - Page 127

mdettweiler · 2016-08-11, 02:49

993*2^1437131-1 is prime! (port 2000/14th drive)

mdettweiler · 2016-09-01, 06:34

951*2^1438430-1 is prime! (port 2000/14th drive)

mdettweiler · 2016-09-06, 04:23

685*2^1438521-1 is prime! (port 2000/14th drive)

mdettweiler · 2016-09-28, 12:18

741*2^1441006-1 is prime! (port 2000/14th drive)

Mini-Geek · 2016-11-01, 03:02

499*2^1434643-1 is prime!

mdettweiler · 2016-11-29, 06:18

Two primes from port 2000:

623*2^1445836-1
685*2^1446421-1

gd_barnes · 2016-12-05, 03:41

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

henryzz · 2016-12-05, 17:12

Quote:

Originally Posted by gd_barnes

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

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.

pepi37 · 2016-12-05, 18:12

Quote:

Originally Posted by henryzz

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.

What is that two "primes"? ( if I may know)?

pinhodecarlos · 2016-12-05, 19:57

Quote:

Originally Posted by pepi37

What is that two "primes"? ( if I may know)?

I suppose these two:

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

from

http://www.noprimeleftbehind.net/sta...p?content=port

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.

gd_barnes · 2016-12-05, 20:46

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.

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2016-08-11, 02:49	#1387
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 6249₁₀ Posts	993*2^1437131-1 is prime! (port 2000/14th drive)

2016-09-01, 06:34	#1388
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3×2,083 Posts	951*2^1438430-1 is prime! (port 2000/14th drive)

2016-09-06, 04:23	#1389
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3×2,083 Posts	685*2^1438521-1 is prime! (port 2000/14th drive)

2016-09-28, 12:18	#1390
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3·2,083 Posts	741*2^1441006-1 is prime! (port 2000/14th drive)

2016-11-01, 03:02	#1391
Mini-Geek Account Deleted "Tim Sorbera" Aug 2006 San Antonio, TX USA 10AB₁₆ Posts	499*2^1434643-1 is prime!

2016-11-29, 06:18	#1392
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 6249₁₀ Posts	Two primes from port 2000: 6232^1445836-1 6852^1446421-1

2016-12-05, 03:41	#1393
gd_barnes May 2007 Kansas; USA 10412₁₀ Posts	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

2016-12-05, 20:46	#1397
gd_barnes May 2007 Kansas; USA 24254₈ Posts	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.