Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 269: | \[{16^{269}-1\over15}\] | 2153 × 3229 × 5381 × 8609 × 4273873 × 13822297 × 1633401082697<13> × 424255915796187428893811<24> × 3918695179304214327885157<25> × 185382112947811828276076281<27> × 122575221550682354302309961053<30> × 898904260625884249027566123577814531679366231253<48> × 745280352191786358209397071708329198285057832384965565161<57> × 68625988504811774259364670661552948915363901845035416371912463477873783063<74> |