|
History of Cunningham Chain length 3
|
| Initial prime number |
Digits |
When |
Discoverer |
| 1st kind |
| 1128330746865 • 266439 − 1 |
20013 |
17 Feb 2020 |
Dr. Michael Paridon, NewPGen, OpenPFGW |
| 1815615642825 • 244044 − 1 |
13271 |
11 Nov 2016 |
Michael Angel, Dirk Augustin, NewPGen, OpenPFGW |
| 778965587811 • 236625 − 1 |
11038 |
1 Sep 2016 |
Michael Angel, Dirk Augustin, NewPGen, OpenPFGW |
| 272879344275 • 236620 − 1 |
11036 |
30 Aug 2016 |
Michael Angel, Dirk Augustin, NewPGen, OpenPFGW |
| 333645655005 • 235547 − 1 |
10713 |
17 Mar 2015 |
Serge Batalov, NewPGen, OpenPFGW |
| 5110664609396115 • 234944 − 1 |
10535 |
Apr 2014 |
Gábor E. Gévay, Emil Vatai, Gabor Farkas, Antal Járai, OpenPFGW |
| 914546877 • 234772 − 1 |
10477 |
8 Jan 2010 |
Tom Wu, sgsieve, LLR |
| 379185609 • 227127 − 1 |
8175 |
Nov 2009 |
Tom Wu, sgsieve, LLR |
| 164210699973 • 226326 − 1 |
7937 |
Aug 2006 |
Dr. Michael Paridon, NewPGen, OpenPFGW |
| 3020255265 • 220023 − 1 |
6038 |
Apr 2005 |
Jiong Sun, NewPGen, OpenPFGW |
| 2288999415 • 215937 − 1 |
4807 |
Jul 2004 |
Jiong Sun, NewPGen, OpenPFGW |
| 5040102231 • 212301 − 1 |
3713 |
Sep 2002 |
Kimmo Herranen, OpenPFGW |
| 268382583 • 212294 − 1 |
3710 |
Jul 2002 |
Michael Angel, Dirk Augustin, Paul Jobling, NewPGen, OpenPFGW, Proth |
| 1838313165 • 210219 − 1 |
3086 |
Sep 2001 |
Michael Angel, Dirk Augustin, Paul Jobling, NewPGen, PRP, Proth |
| 1999446945 • 26626 − 1 |
2004 |
2000 |
Stephen Scott, Yves Gallot |
| 384205437 • 24000 − 1 |
1213 |
20 May 1998 |
Warut Roonguthai, Proth |
| 651358155 • 23291 − 1 |
1000 |
7 May 1998 |
Warut Roonguthai, Proth 4.01 |
| 2nd kind |
| 214923707595 • 249071 + 1 |
14784 |
2 Jan 2025 |
Serge Batalov, NewPGen, OpenPFGW |
| 742478255901 • 240067 + 1 |
12074 |
9 Sep 2016 |
Michael Angel, Dirk Augustin, NewPGen, OpenPFGW |
| 996824343 • 240072 + 1 |
12072 |
2 Sep 2016 |
Michael Angel, Dirk Augustin, NewPGen, OpenPFGW |
| 49607430768 • 1111005 + 1 |
11470 |
3 Dec 2016 |
Thomas Ritschel, NewPGen, TOPS, LLR |
| 9649755890145 • 233333 + 1 |
10048 |
18 Mar 2015 |
Serge Batalov, NewPGen, OpenPFGW |
| 15162914750865 • 233217 + 1 |
10013 |
18 Mar 2015 |
Serge Batalov, NewPGen, OpenPFGW |
| 2366867925 • 217206 + 1 |
5189 |
Oct 2004 |
Jiong Sun, NewPGen, OpenPFGW |
| 1110159213 • 215164 + 1 |
4574 |
Oct 2002 |
Michael Angel, Dirk Augustin, Paul Jobling, NewPGen, PRP, Proth |
| 1531785651 • 210107 + 1 |
3052 |
Aug 2001 |
Michael Angel, Dirk Augustin, Paul Jobling, NewPGen, PRP, Proth |
| 1361835195 • 28191 + 1 |
2475 |
2000 |
Steven Nikkel, Tim Nikkel, Proth |
| 1568753260 • 4673# + 1 |
2006 |
Jun 2000 |
Dirk Augustin, Paul Jobling, NewPGen, OpenPFGW |
| 734257203 • 25000 + 1 |
1515 |
1998 |
Warut Roonguthai, Proth |
