Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 99: | \[{10^{99}-1\over9}\] | 32 × 37 × 67 × 199 × 397 × 21649 × 34849 × 333667 × 513239 × 1344628210313298373<19> × 362853724342990469324766235474268869786311886053883<51> |