20230310, 15:40  #617 
Apr 2020
2×569 Posts 
They must have increased the number of IPs they're (ab)using.
If the IPs are all in the same range, perhaps a limit on IDs created per appropriatelysized range per hour is the way to go. 
20230312, 23:46  #618  
"Gary"
May 2007
Overland Park, KS
30FF_{16} Posts 
Quote:
Perhaps a solution would be to require that everyone register their ID and Email with the site. That would challenge the spammer a little more; at least make him work a little harder when using multiple IPs. You'd lose the anonymity that we have now. I would not be opposed to that. Last fiddled with by gd_barnes on 20230312 at 23:48 

20230313, 13:55  #619 
"Alexander"
Nov 2008
The Alamo City
2^{3}·127 Posts 
Unless the new limits have been eased (which it doesn't sound like they have), I think the return of the spam puts to rest any idea that this spammer is a misguided, rather than malicious, individual, as some people here had posited/hoped. Markus should seriously consider contacting the police and/or a security consultant as the next step.

20230313, 18:08  #620  
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
2×5×1,187 Posts 
Quote:


20230313, 18:10  #621 
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
2×5×1,187 Posts 

20230314, 00:27  #622 
Random Account
Aug 2009
Oceanus Procellarum
5707_{8} Posts 
factordb loses me. I picked a number, a play on my dad's birthday, which is 8 digits and searched. It was there. On the farleft side was "FF" meaning fully factored. Behind the number I searched for were several small numbers. How can something be fully factored if the largest factor is three digits long?

20230314, 02:07  #623 
"Curtis"
Feb 2005
Riverside, CA
5989_{10} Posts 

20230314, 15:15  #624  
Random Account
Aug 2009
Oceanus Procellarum
BC7_{16} Posts 
Quote:
The number I was goofing with is 18061923. ddmmyyyy. I expected a composite of this size to have a larger factor. Then again, maybe not. None of this is important. Just a curiosity. 

20230314, 18:45  #625 
Aug 2020
79*6581e4;3*2539e3
2DD_{16} Posts 
The number of prime factors of a number n is on the order of log(log(n)). An 8 digit number can be tentatively expected to have 3 prime factors. So, a 3 digit prime as the largest factor is not that strange.
https://factordb.com/index.php?query...%2Bn&use=n&n=0 Last fiddled with by bur on 20230314 at 18:46 
20230530, 22:03  #626 
"Daniel Jackson"
May 2011
14285714285714285714
2^{2}×193 Posts 
Has this always been like this?
Has anyone else noticed the typo under More Information for special form numbers? I just now noticed it:
http://www.factordb.com/index.php?id...00004435617556 "Autogenerated SNFSPolynominal available!" (should be "Polynomial") How long has it been this way without us noticing? Last fiddled with by Stargate38 on 20230530 at 22:07 
20230808, 18:42  #627 
Jun 2023
2 Posts 
This number is composite, even if it's marked as PRP:
http://www.factordb.com/index.php?id...00003939667113 It has a factor 610333938525463207201, and the cofactor is still composite. I've tried to submit the factor, but the status doesn't change to C. Curiosly, it became PRP few minutes ago, even if that number is in factordb since October 31, 2022. EDIT: Searching in this forum by its ID, I see that it's a recurring problem: https://www.mersenneforum.org/showpo...03&postcount=6 Last fiddled with by AnCo on 20230808 at 18:52 
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