Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 115: | \[{19^{115}-1\over18}\] | 151 × 277 × 461 × 911 × 2347 × 9661 × 1625377111 × 16497763013<11> × 1335495402823<13> × 1424127720880231<16> × 3116089164298772408742459158511660993078222764512521871753456940323041289292878361<82> |