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2017-03-14, 17:37   #166
cmd

"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

11111001112 Posts

Quote:
 Originally Posted by GeoffreyY factordb still thinks that these two are 82 digit composites: 9699691 (id 1100000000912669113) 223092871 (id 1100000000912669114)

Incorrect use of ##

1+8##
1+9##

Last fiddled with by cmd on 2017-03-14 at 17:43 Reason: already for a long time ( 2 dk )

 2017-03-17, 22:25 #167 Stargate38     "Daniel Jackson" May 2011 14285714285714285714 23×34 Posts Why am I getting the factorization of a 64-digit number instead of a 61-digit number? Why does the DB say that this number is 2*324*1918*363889*109912203092239643840221 instead of 2*318*1918*363889*109912203092239643840221? I checked in Pari/gp, and it says this: Code: (18:11) gp > factor(3226950014783883023598007090793710151258504258637092076077562) %1 = [ 2 1] [ 3 18] [ 19 18] [ 363889 1] [109912203092239643840221 1] (18:11) gp > 2*3^18*19^18*363889*109912203092239643840221 %2 = 3226950014783883023598007090793710151258504258637092076077562 (18:17) gp > Somehow, the db messed up on the power of 3, and reports the factorization of this number instead. Last fiddled with by Stargate38 on 2017-03-17 at 22:26 Reason: 109912203092239643840221 instead of (19^19-1)/18 for clarity...
 2017-03-18, 08:48 #168 VolMike     Jun 2007 Moscow,Russia 7×19 Posts Problem with (10^79-181)%(10^79-1)/9 Hi all. There is a problem with http://www.factordb.com/index.php?id...00000900935563. It's proven prime, but it's still shown as composite at http://www.factordb.com/listtype.php?t=3, which gives some inconveniencies during automatic factorization. I hope the factordb's admins can manually set this number prime. Last fiddled with by VolMike on 2017-03-18 at 08:50
 2017-03-19, 19:14 #169 Stargate38     "Daniel Jackson" May 2011 14285714285714285714 23·34 Posts I'm also having problems with 2*314*1918*363889*109912203092239643840221, 2*316*1918*363889*109912203092239643840221, and 2*319*1918*363889*109912203092239643840221. They also have the wrong factorization. Last fiddled with by Stargate38 on 2017-03-19 at 19:16 Reason: fix formatting...
 2017-03-26, 21:56 #170 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 33·37 Posts # id rec error (dupe?) Attached Thumbnails
 2017-03-27, 00:28 #171 cmd     "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 99910 Posts # a|\|°t|-|er .. |-|°|_e Attached Thumbnails
 2017-04-02, 15:32 #172 chris2be8     Sep 2009 7EC16 Posts I've just sent Marcus an email listing the various problems I can see in factordb (the ones on the first page of composite numbers and the composite in the list of PRPs). I'll let you know if he replies with anything interesting. Chris
 2017-04-11, 16:01 #173 chris2be8     Sep 2009 111111011002 Posts I've had a reply from Markus saying he has very little time at the moment, but will look at it soon. Chris
 2017-07-20, 15:43 #174 chris2be8     Sep 2009 22×3×132 Posts Two more problems: The distribution of probable primes shows one of 22 digits. But the list of probable primes at http://factordb.com/listtype.php?t=1 doesn't show anything (unless you set min digits to something larger than 22). This is probably why the status page doesn't show the smallest PRP now. The list of composite numbers at http://factordb.com/listtype.php?t=3 has a similar issues at 22 and 30 digits (and possibly some more between those ranges). Chris
 2017-08-04, 16:52 #175 cubaq     Mar 2016 59 Posts reporting factors problem I am reporting factor to composite. Factor is known from 2014, but 'source' number is still marked as 'C'. After reporting factor db shows attached screen. Regards, cubaq Attached Thumbnails
 2017-08-04, 22:05 #176 Stargate38     "Daniel Jackson" May 2011 14285714285714285714 23·34 Posts What on Earth is wrong with these number entries?! What's going on here?! http://www.factordb.com/index.php?qu...at=1&sent=Show x=14, 16, 18, and 19 are showing the wrong factorizations. It's the same problem that's going on here. Please fix it! It's been like that since St. Patrick's Day, and it's getting to be really annoying! Also the DB workers are stuck on 743 numbers <1 quintillion that just won't go from C to FF, even though all the factors are already there, resulting in larger composites not getting factored. Last fiddled with by Stargate38 on 2017-08-04 at 22:12 Reason: more info

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