|
Rank
|
Probable prime
|
Digits (> 10000)
|
Who? |
When?
|
| 1275 | 21^193601-20^193601 | 255983 | Jean-Louis Charton | 02/2015 |
| 1491 | 21^176191-20^176191 | 232964 | Jean-Louis Charton | 01/2015 |
| 2666 | 21^128327-20^128327 | 169677 | Jean-Louis Charton | 11/2014 |
| 13277 | 21^59971-20^59971 | 79295 | Robert Price | 05/2012 |
| 20098 | 21^44017-20^44017 | 58201 | Robert Price | 05/2012 |
| 53259 | 21^37549-20^37549 | 49649 | Jean-Louis Charton | 02/2012 |
| 250731 | 21^9127-20^9127 | 12068 | Mike Oakes | 04/2001 |