Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 205: | \[{11^{205}-1\over10}\] | 5 × 83 × 1231 × 3221 × 27061 × 509221 × 14092193 × 29866451 × 840139875599<12> × 38145177207118840777602110146144147278834810711673879769025127728155912115802873411186235194367707866562786397602878823078661913866559361547401697244391748143577284801<167> |