Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 198: | \[{10^{198}-1\over9}\] | 32 × 7 × 112 × 13 × 19 × 23 × 37 × 67 × 199 × 397 × 4093 × 8779 × 21649 × 34849 × 52579 × 333667 × 513239 × 599144041 × 7093127053<10> × 183411838171<12> × 1344628210313298373<19> × 141122524877886182282233539317796144938305111168717<51> × 362853724342990469324766235474268869786311886053883<51> |