Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 373: | \[{8^{373}-1\over7}\] | 2239 × 20143 × 25569151 × 154565233 × 1100558881 × 752440346497356983142327449546457327748644897934114291899411428982990336039662496766303354959577078458241<105> × 6892477918060767169857953803990496099874726825695862537945221995878503780332224363268573073183630500367119392420062341262872218580566927371739993650805027469403348034817728695613974591485048735894231<199> |