Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 230: | \[{19^{230}-1\over18}\] | 22 × 52 × 11 × 47 × 151 × 277 × 461 × 691 × 911 × 1151 × 2251 × 2347 × 2531 × 9661 × 1625377111 × 16497763013<11> × 1335495402823<13> × 1424127720880231<16> × 156832034288392140949<21> × 448462689347283936140952301423321632341<39> × 69149885058178493421769595581489846829507287631690660854764695533360531<71> × 3116089164298772408742459158511660993078222764512521871753456940323041289292878361<82> |