|
History of Cunningham Chain length 16
|
| Initial prime number |
Digits |
When |
Discoverer |
| 1st kind |
| 91304653283578934559359 |
23 |
29 May 2008 |
Jaroslaw Wroblewski |
| 5519665868342773187038 |
22 |
27 May 2008 |
Jaroslaw Wroblewski |
| 892390227741617675069 |
21 |
Feb 2002 |
Phil Carmody, Paul Jobling, GenSv |
| 2nd kind |
| 2 • 1540797425367761006138858881 − 1 |
28 |
9 Mar 2014 |
Raanan Chermoni, Jaroslaw Wroblewski |
| 4 • 658189097608811942204322721 − 3 |
28 |
3 Apr 2014 |
Raanan Chermoni, Jaroslaw Wroblewski |
| 2614065594356962781728904641 |
28 |
9 Apr 2014 |
Raanan Chermoni, Jaroslaw Wroblewski |
| 2368823992523350998418445521 |
28 |
26 Jun 2008 |
Jaroslaw Wroblewski |
| 20193491108493165642344881 |
26 |
12 Jun 2008 |
Jaroslaw Wroblewski |
| 2 • 1302312696655394336638441 − 1 |
25 |
10 Jun 2008 |
Jaroslaw Wroblewski |
| 258296136493222766530021 |
24 |
8 Jun 2008 |
Jaroslaw Wroblewski |
| 2 • 127806074555607670094731 − 1 |
24 |
5 Jun 2008 |
Jaroslaw Wroblewski |
| 15745040405007366603151 |
23 |
25 May 2008 |
Jaroslaw Wroblewski |
| 3203000719597029781 |
19 |
Dec 1997 |
Tony Forbes, 1st known |
