| rank | prime |
digits | who | when | comment |
|---|
| 1 | 2 · 35570081 + 1 |
2657605 |
L4965 |
Feb 2020 |
Divides Phi(35570081, 2) [g427] |
| 2 | 2 · 33648969 + 1 |
1741001 |
L5043 |
Feb 2020 |
Divides Phi(33648964, 2) [g427] |
| 3 | 2 · 1283432757 + 1 |
1345108 |
L4879 |
Jan 2019 |
Divides Phi(1283432757, 2) |
| 4 | 2 · 1151417747 + 1 |
1278756 |
L4879 |
Jan 2019 |
Divides Phi(1151417747, 2) |
| 5 | 2 · 1259411259 + 1 |
1274914 |
L4879 |
May 2020 |
Divides Phi(1259411259, 2) |
| 6 | 2 · 839394257 + 1 |
1152714 |
L4879 |
Jan 2019 |
Divides Phi(839394257, 2) |
| 7 | 2 · 1103368361 + 1 |
1120767 |
L4879 |
Jan 2019 |
Divides Phi(1103368361, 2) |
| 8 | 2 · 131528469 + 1 |
1118913 |
L4879 |
Jan 2019 |
Divides Phi(131528469, 2) |
| 9 | 2 · 431414457 + 1 |
1091878 |
L4879 |
Jan 2019 |
Divides Phi(431414457, 2) |
| 10 | 2 · 59608685 + 1 |
1077892 |
g427 |
Oct 2014 |
Divides Phi(59608685, 2) |
| 11 | 2 · 23774109 + 1 |
1054127 |
g427 |
Oct 2014 |
Divides Phi(23774109, 2) |
| 12 | 2 · 11171168429 + 1 |
681817 |
g427 |
Sep 2014 |
Divides Phi(11171168429, 2) |
| 13 | 2 · 179294739 + 1 |
664004 |
g424 |
Nov 2011 |
Divides Phi(179294739, 2) |
| 14 | 2 · 10271164621 + 1 |
660397 |
g427 |
Sep 2014 |
Divides Phi(10271164621, 2) |
| 15 | 2 · 659233973 + 1 |
659544 |
g424 |
Mar 2015 |
Divides Phi(659233973, 2) |
| 16 | 2 · 191287901 + 1 |
656713 |
g424 |
Jan 2015 |
Divides Phi(191287901, 2) |
| 17 | 2 · 47346759 + 1 |
579816 |
g424 |
Jan 2011 |
Divides Phi(47346759, 2) |
| 18 | 2 · 191232149 + 1 |
529540 |
g424 |
Oct 2011 |
Divides Phi(191232149, 2) |
| 19 | 2 · 359192871 + 1 |
492804 |
g424 |
Nov 2014 |
Divides Phi(359192871, 2) |
| 20 | 2 · 839155785 + 1 |
455479 |
g424 |
Dec 2014 |
Divides Phi(839155785, 2) |
Definitions and Notes