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Record history of Cunningham Chain length 8
first member Digits When? Discoverer

1st kind
 
89628063633698570895360 • 593# - 1
265
17 Dec 2017
 Balyakin
1106749879993647616 • 593# - 1
260
10 Mar 2016
 Balyakin
5175268103676 • 557# - 1
238
20 Nov 2015
 Östlin, NewPGen, OpenPFGW
2 • 65728407627 • 431# - 1
186
Aug 2005
 Augustin, NewPGen, OpenPFGW
1352438530 • 311# + 5705699
135
May 2004
 Alm, Andersen, Primo
548879116 • 181# - 1
82
Jun 2000
 Augustin, NewPGen, OpenPFGW
1742368093 • 89# - 1
44
1 Jun 2000
 Augustin, NewPGen, OpenPFGW
1360673835 • 250 - 1
25
Mar 2000
 Augustin, NewPGen, Proth
36097525695 • 241 - 1
23
Dec 1999
 Jobling

2nd kind
 
2373007846680317952 • 761# + 1
337
10 Mar 2016
 Balyakin
112156947439087303442563072 • 491# + 1
230
15 May 2015
 Balyakin
1148424905221 • 509# + 1
224
Aug 2010
 Augustin, NewPGen, OpenPFGW
177497325593 • 229# + 1
103
Jun 2002
 Augustin, NewPGen, OpenPFGW
1831430532 • 107# + 1
52
13 Jun 2000
 Augustin, NewPGen, OpenPFGW