Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 245: | \[{10^{245}-1\over9}\] | 41 × 71 × 239 × 271 × 4649 × 123551 × 336737801 × 505885997 × 23609565631<11> × 102598800232111471<18> × 8274923251622825388807721<25> × 1976730144598190963568023014679333<34> × 74689140199104459031993110210054016743223513365511<50> × 203516044706214609477702993254172225288278166588115003201602386454909778841<75> |