|
Rank
|
Probable prime
|
Digits (> 10000)
|
Who? |
When?
|
| 32 | (18^180181-1)/17 | 226176 | Andy Steward | 04/2007 |
| 40 | (18^157051-1)/17 | 197141 | Paul Bourdelais | 03/2010 |
| 50 | (18^142031-1)/17 | 178287 | Paul Bourdelais | 03/2010 |
| 1458 | (18^28807-1)/17 | 36160 | Henri Lifchitz | 09/2007 |
| 2177 | (18^25667-1)/17 | 32218 | Henri Lifchitz | 09/2007 |