Other Factordb Problems

[chris2be8]

Entering 3000! on the search page I get (in red text):
Error: Error, left: 34015040337440419

And entering 6380! I get:
Error: Error, left: 75853100704016767

This may be related to problems trying to factor (10^12413-1)*3000! and (10^37-1)*6380! which just show a nearly blank page when I look at them after adding factors.

Chris

[Stargate38]

I'm having the same problem with 10^319*34015040337440419+1. I can't prove it because 10^319*34015040337440419 give the same error as 3000! does, but PFGW can prove it in less than 1 second.

[richs]

I cannot download elf files either.

[chris2be8]

Originally Posted by Stargate38

I'm having the same problem with 10^319*34015040337440419+1. I can't prove it because 10^319*34015040337440419 give the same error as 3000! does, but PFGW can prove it in less than 1 second.

Fixed now (thanks Syd). And 10^319*34015040337440419+1 proved prime.

Chris

[Batalov]

Markus-
For a while now the sequence plots are somewhat broken. The x-axis is labeled not with iteration numbers but with a cryptic set of labels "0g"
See, e.g: http://factordb.com/aliquot.php?type=1&aq=3408

[LaurV]

Yes, this happens after moving to the new house. For some sequences the y axis it broken too.

[Stargate38]

I can't seem to get the "More Information" arrow to work on http://www.factordb.com/index.php?id...00000852249126. Every time I click on it, I get "Fehler:500". Fehler is German for "Error", but what is causing it? So far, it only happens on numbers of the form p^3-1 (and some of their divisors), where p exceeds a number somewhere between 10²⁰ and 10³⁰.

It also happens with the following p, which come from this sequence:

393853854071865815771142190319
7607226267273622127804600920387
86811888330230304650714543590819
526953490115404345054580054730157
348540719804328774854327717792371297
5337548572804098340944438684560128092523
454538612815173244007019227293281275389891
7591218859870064461853856922899041053728855979

[chris2be8]

Fetching http://factordb.com/listtype.php?t=3...100&mindig=145 gets a "500 Internal Server Error" response from LWP and an incomplete page in Firefox.

I've narrowed it down to http://factordb.com/listtype.php?t=3...e=1&mindig=145 (start=17998 or start=18000 work, that doesn't).

Syd, are you reading this thread?

Chris

[chris2be8]

http://factordb.com/listtype.php?t=3...100&mindig=156 is supposed to give a list of 156 digit numbers (or switch to 157 digit numbers if they run out). But it also returns:

1100000000217043161 	1210028 	7

Clicking the link it's 2^500*1210028-(2^1061-1)%2^500*1210028

I had to patch my script to find algebraic factors to get past this, it didn't expect the number of digits to go down so got stuck in a loop.

There a quite a few similar cases later on in factordb. If I interpret it correctly the result should be zero.

Chris

[chris2be8]

http://factordb.com/listtype.php?t=3...100&mindig=176 includes:

1100000000490094824 	0 	1
1100000000490094826 	0 	1
1100000000490094827 	0 	1

Clicking on the links I get:

10^911%10^911%(2^607-1)/24108718
10^911%10^911%(2^607-1)/24108718
10^911%10^911%(2^607-1)/24108718

I've checked several times they all look the same.

Chris

[Stargate38]

Related issue: ID1100000000490094835 is a factor of 0, and when you click on that 0, you get to 10^911%10^911%(2^607-1)/24108718 (shows up as 0), which shows the algebraic factor 24108718=2*12054359, but neither 2 nor 12054359 divides this number:

5661422209119053991880081802262626804959713319961094396821591506206285963289025604242108657798855223981525849619677500151899950220903928895221339785810969803660033697173379
=202625399876381*C158

Also, the composites page isn't working. Probably related to the 10^911%10^911%(2^607-1)/24108718=0 problem.

Another problem: The workers that usually factor numbers <70 digits aren't connected, and the Status page stops at the pie chart, without showing what the smallest U, C, and PRP numbers are.