20210601, 13:01  #67 
Jan 2007
Germany
2^{5}·11 Posts 
Is Bern(8286) now proven ?
I asked, maybe we should set lower parameters (dd=3000,not dd=11000) and get another way earlier... Last fiddled with by Cybertronic on 20210601 at 13:02 
20210603, 20:20  #68 
Jan 2007
Germany
2^{5}·11 Posts 
10000 digit twins
So folk, the certifications are done and uploaded to factordb.com
10^9999+2421018649+d,d=0,2 are the smallest gigantic PROVEN twin primes. Maybe it should be mention in wikipedia ?! Numbers was found first by Dirk Augustin in 2010 and now proven primes by Norman Luhn. Last fiddled with by Cybertronic on 20210603 at 20:20 
20210605, 12:51  #69 
Jan 2007
Germany
2^{5}·11 Posts 
smallest 20000digit twins
Here are maybe more Primo jobs ?!
Even I found the smallest 20000 digit twin PRPs. 10^19999+1514722609+d,d=0,2 Smallest 20000digit PRP is 10^19999+110949 / found by Patrick De Geest best, Norman Last fiddled with by Cybertronic on 20210605 at 13:05 
20210605, 14:18  #70 
Sep 2002
Database er0rr
111011100001_{2} Posts 
These are not "top20" special forms at the PrimePages. They would take you 16 times as long each as the 10k digit primes you certified.

20210605, 14:38  #71 
Jan 2007
Germany
101100000_{2} Posts 
>These are not "top20" special forms at the PrimePages. They would take you 16 times as long each as the 10k digit primes you certified.
I know this, but it is maybe for a TR "a quick bit" between breakfast and lunch This twin is just listed as PRP in my project file. Last fiddled with by Cybertronic on 20210605 at 14:39 
20210614, 22:15  #72 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2×11×433 Posts 
Unrelated posts are split to separate thread  "Education of Eliza Doolittle" 
20210709, 04:44  #73 
May 2020
3·13 Posts 
i relinquish my reservation for the time being. do feel free to claim it, as my machine is problematic as of late.

20210804, 07:48  #74 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2536_{16} Posts 
Facq, Asuncion & Allombert are now exercising an alternative ECPP implementation with Pari/MPI.
Decent sizes, good p.o.c. 
20210804, 09:18  #75  
"99(4^34019)99 palind"
Nov 2016
(P^81993)SZ base 36
2^{2}×757 Posts 
Quote:


20210809, 14:31  #76 
"99(4^34019)99 palind"
Nov 2016
(P^81993)SZ base 36
2^{2}·757 Posts 
Why (2^95369+1)/3 is not shown in http://www.ellipsa.eu/public/primo/top20.html? It has been proven to be prime, see https://primes.utm.edu/top20/page.php?id=67

20210809, 16:00  #77 
Sep 2002
Database er0rr
13·293 Posts 
Der, it was not proved with Primo but with Pari/MPI. ^^^ See above.

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
5*2^n1 Reservation Thread  VBCurtis  Riesel Prime Search  671  20210920 17:01 
15*2^n1, n>1M Reservation Thread  Kosmaj  Riesel Prime Search  704  20210906 01:01 
Octoproth Reservation Thread  Greenbank  Octoproth Search  2  20071226 09:58 
Dodecaproth Reservation Thread  Greenbank  Octoproth Search  30  20060209 00:33 
Hexadecaproth Reservation Thread (n=76)  Greenbank  Octoproth Search  0  20060125 13:41 