Factors of (10p-1)/9=11...11
| p | factors |
| 2 | prime |
| 3 | 3 * 37 |
| 5 | 41 * 271 |
| 7 | 239 * 4649 |
| 11 | 21649 * 513239 |
| 13 | 53 * 79 * 265371653 |
| 17 | 2071723 * 5363222357 |
| 19 | prime |
| 23 | prime |
| 29 | 3191 * 16763 * 43037 * 62003 * 77843839397 |
| 31 | 2791 * 6943319 * 57336415063790604359 |
| 37 | 2028119 * 247629013 * 2212394296770203368013 |
| 41 | 83 * 1231 * 538987 * 201763709900322803748657942361 |
| 43 | 173 * 1527791 * 1963506722254397 * 2140992015395526641 |
| 47 | 35121409 * 316362908763458525001406154038726382279 |
| 53 | 107 * 1659431 * 1325815267337711173 * 47198858799491425660200071 |
| 59 | 2559647034361 * 4340876285657460212144534289928559826755746751 |
| 61 | 733 * 4637 * 329401 * 974293 * 1360682471 * 106007173861643 * 7061709990156159479 |
| 67 | 493121 * 79863595778924342083 * 28213380943176667001263153660999177245677 |
| 71 | 241573142393627673576957439049 * 45994811347886846310221728895223034301839 |
| 73 | 12171337159 * 1855193842151350117
* 49207341634646326934001739482502131487446637 |
| 79 | 317 * 6163 * 10271 * 307627 * 49172195536083790769
* 3660574762725521461527140564875080461079917 |
| 83 | 3367147378267 * 9512538508624154373682136329
* 346895716385857804544741137394505425384477 |
| 89 | 497867 * 103733951 * 104984505733 * 5078554966026315671444089 * 403513310222809053284932818475878953159 |
| 97 | 12004721 * 846035731396919233767211537899097169 * 109399846855370537540339266842070119107662296580348039 |