|
Rank
|
Probable prime
|
Digits (> 10000)
|
Who? |
When?
|
| 1 | (10^8177207-1)/9 | 8177207 | Ryan Propper + Sergey Batalov | 05/2021 |
| 2 | (10^5794777-1)/9 | 5794777 | Ryan Propper + Sergey Batalov | 04/2021 |
| 1153 | (10^270343-1)/9 | 270343 | Maksym Voznyy | 07/2007 |
| 1844 | (10^(2*100072+1)+36*10^100072-1)/9 | 200145 | Robert Price | 09/2023 |
| 5196 | (10^(2*60126+1)+36*10^60126-1)/9 | 120253 | Robert Price | 10/2015 |
| 6226 | (10^109297-1)/9 | 109297 | Paul Bourdelais, Harvey Dubner | 04/2007 |
| 11995 | (10^86453-1)/9 | 86453 | Lew Baxter | 10/2000 |
| 12197 | (10^(2*42589+1)+72*10^42589-1)/9 | 85179 | Robert Price | 09/2017 |
| 12580 | (10^(2*41585+1)+54*10^41585-1)/9 | 83171 | Robert Price | 04/2017 |
| 13541 | (10^(2*39165+1)+54*10^39165-1)/9 | 78331 | Robert Price | 04/2017 |
| 15798 | (10^(2*34016+1)+72*10^34016-1)/9 | 68033 | Robert Price | 09/2017 |
| 53501 | (10^49081-1)/9 | 49081 | Harvey Dubner | 09/1999 |
| 55378 | (10^(2*22235+1)+54*10^22235-1)/9 | 44471 | Robert Price | 04/2017 |
| 147984 | (10^(2*13197+1)+36*10^13197-1)/9 | 26395 | Robert Price | 10/2015 |
| 237715 | (10^13564-1)/9+(10^1031-1)/9+(10^317-1)/9+(10^23-1)/9+(10^19-1)/9+(10^2-1)/9+(10^1-1)/9 | 13564 | Matt Stath | 07/2013 |