| rank | prime |
digits | who | when | comment |
|---|
| 1 | 2 · 82798511+1 |
287407 |
g404 |
Feb 2009 |
Divides Phi(82798511, 2) |
| 2 | 2 · 68373237+1 |
207585 |
g404 |
Oct 2008 |
Divides Phi(68373237, 2) |
| 3 | 2 · 41976419+1 |
200388 |
g404 |
Nov 2007 |
Divides Phi(41976419, 2) |
| 4 | 2 · 19183009+1 |
189347 |
g404 |
Nov 2006 |
Divides Phi(19183009, 2) |
| 5 | 2 · 13186365+1 |
182859 |
g404 |
Jun 2007 |
Divides Phi(13186365, 2) |
| 6 | 2 · 103153111+1 |
160038 |
g404 |
Apr 2009 |
Divides Phi(103153111, 2) |
| 7 | 2 · 19166971+1 |
152764 |
g404 |
Oct 2006 |
Divides Phi(19166971, 2) |
| 8 | 2 · 43156947+1 |
150026 |
g404 |
Nov 2007 |
Divides Phi(43156947, 2) |
| 9 | 2 · 193145605+1 |
149849 |
g404 |
Sep 2007 |
Divides Phi(193145605, 2) |
| 10 | 2 · 59951983+1 |
144380 |
g404 |
Apr 2008 |
Divides Phi(59951983, 2) |
| 11 | 2 · 19161303+1 |
139835 |
g404 |
Oct 2006 |
Divides Phi(19161303, 2) [g187] |
| 12 | 2 · 86344857+1 |
131701 |
g404 |
Dec 2008 |
Divides Phi(86344857, 2) |
| 13 | 2 · 68345797+1 |
129809 |
g404 |
Sep 2008 |
Divides Phi(68345797, 2) |
| 14 | 2 · 2393337+1 |
127100 |
gb1 |
Feb 2006 |
Divides Phi(2393337, 2) |
| 15 | 2 · 452334421+1 |
125824 |
gb1 |
Jul 2004 |
Divides Phi(452334421, 2) |
| 16 | 2 · 35949071+1 |
125382 |
g404 |
Oct 2007 |
Divides Phi(35949071, 2) |
| 17 | 2 · 25151905+1 |
124556 |
gb2 |
Jun 2006 |
Divides Phi(25151905, 2) |
| 18 | 2 · 407933873+1 |
122301 |
gb2 |
Jan 2007 |
Divides Phi(407933873, 2) |
| 19 | 2 · 49142801+1 |
115182 |
g404 |
Dec 2007 |
Divides Phi(49142801, 2) |
| 20 | 2 · 803927953+1 |
109163 |
gb1 |
Jul 2004 |
Divides Phi(803927953, 2) |
|
Definitions and Notes