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Old 2017-03-14, 17:37   #166
cmd
 
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Cool

Quote:
Originally Posted by GeoffreyY View Post
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 )
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Old 2017-03-17, 22:25   #167
Stargate38
 
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Exclamation 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...
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Old 2017-03-18, 08:48   #168
VolMike
 
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Default 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
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Old 2017-03-19, 19:14   #169
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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...
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Old 2017-03-26, 21:56   #170
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Question #

id rec error (dupe?)
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Old 2017-03-27, 00:28   #171
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a|\|°t|-|er .. |-|°|_e
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Old 2017-04-02, 15:32   #172
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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
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Old 2017-04-11, 16:01   #173
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I've had a reply from Markus saying he has very little time at the moment, but will look at it soon.

Chris
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Old 2017-07-20, 15:43   #174
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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
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Old 2017-08-04, 16:52   #175
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Default 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
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Old 2017-08-04, 22:05   #176
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Angry 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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