20210512, 19:53  #56  
Mar 2011
Germany
97 Posts 
Quote:
But unluckily our results displayed on Kurt's site do not include the results of Serge and Ryan (except for the new PRPs). The dump includes just the results from our own search. I would really like to extend our page with the new results though, but currently it seems we will not get the residues or new factors. 

20210512, 20:42  #57 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
10011100000001_{2} Posts 
I have just received a snapshot of current results from Ryan (because we chatted about that request; usually I hear only about hits).
I also have lists of factors elsewhere; will post later. I also currently sieve in 1012M region (to 64 and to 6768 bits eventually). And here it is  attached. 
20210512, 21:15  #58  
Mar 2011
Germany
61_{16} Posts 
Quote:
Thank you very much! I will put them into the database and and publish them on Kurt's site. Cheers, Danilo 

20210512, 21:17  #59 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
23401_{8} Posts 
I will probably grep for all factors that are not present in the site (even though to be safe we started from scratch), to keep the factor "delta" file size to minimum. (I also have a pari script to check all factors, no matter from which origin.)

20210512, 22:10  #60 
Mar 2011
Germany
97 Posts 
I put all known factors from prime exponents with p > 4300000 into one file, this should make it easier to grep for new factors.
Format is (one line per factor) exponent factor I just checked all of them, all are prime and really divide the corresponding repunit R[exponent] 
20210513, 01:11  #61 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
5·1,997 Posts 
Code:
awk '{print "if(Mod(10,"$2")^"$1"!=1,print("$1"))"}' factorsfrom4.3M.txt gp q 
20210526, 02:32  #62 
Sep 2002
Database er0rr
3^{3}×7×23 Posts 

20210527, 10:22  #63 
Jan 2007
Germany
3×5×37 Posts 

20210527, 17:57  #64 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
5·1,997 Posts 
Chris might be on a vacation or something similar.
We haven't heard back (but we did send in the news and the updated graph). 
20210823, 22:48  #66  
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
5·1,997 Posts 
Quote:
It is trivial to compute in Pari (because others already did the job of adapting the Kaprekar criterion; in Wikipedia it is described with a distinct flavor of numerology; for example when one doesn't consider '0' a number, one's ears prick). ...but it works. And (spoiler) ... they are nonself. All of them. So far. 

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