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Old 2020-02-08, 17:03   #430
chris2be8
 
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There's a fault in the list of composite factors, at about 19 digits. So the worker to factor 19-69 digit numbers isn't working.

I'm running a script to factor them to stop too many building up, but it's a bit slow so they may take some time to clear.

Chris
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Old 2020-02-11, 04:10   #431
sweety439
 
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See https://mersenneforum.org/showthread.php?t=10761, 2^16389+67607 have been certified as definitely prime, but see http://factordb.com/index.php?id=1100000000537223829, it is still "PRP" in factordb, can someone update the certificateof this prime?
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Old 2020-02-11, 08:24   #432
MDaniello
 
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I found that FDB recognized some numbers of this form
Code:
(long expression)^2-1
as PRPs, albeit clearly composites.

While you can easily fix this by reporting a factor or asking to check a base, at least one of such numbers was "proven" prime with N+1, making impossible to fix it.
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Old 2020-02-17, 15:47   #433
Stargate38
 
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I can't access FactorDB if I enter http://factordb.com/ in my address bar (it takes me to a domain search page), but it works fine if I type in http://www.factordb.com/. Why is that? Normally it doesn't matter if I type the "www." or not.
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Old 2020-02-17, 16:38   #434
chris2be8
 
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Both work for me (I've just clicked both links). And they are the same IP address:
Code:
chris@rigel:~/bin$ host factordb.com
factordb.com has address 116.203.33.155
factordb.com mail is handled by 100 mxlb.ispgateway.de.

chris@rigel:~/bin$ host www.factordb.com
www.factordb.com has address 116.203.33.155
www.factordb.com mail is handled by 100 mxlb.ispgateway.de.
Chris
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Old 2020-02-19, 16:48   #435
chris2be8
 
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Quote:
Originally Posted by chris2be8 View Post
There's a fault in the list of composite factors, at about 19 digits. So the worker to factor 19-69 digit numbers isn't working.

I'm running a script to factor them to stop too many building up, but it's a bit slow so they may take some time to clear.

Chris
I've sent Markus an email asking him to look at this. I'll post if I get an interesting reply.

Chris
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Old 2020-02-19, 20:49   #436
chris2be8
 
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Markus replied that he had reset those 4 numbers. And everything looks to be working OK now.

Chris
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