Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 92: | \[{19^{92}-1\over18}\] | 23 × 5 × 47 × 181 × 277 × 691 × 2347 × 2531 × 16497763013<11> × 1335495402823<13> × 156832034288392140949<21> × 183635682448662451179177971992641803019682323350468485561<57> |