Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 519: | \[{3^{519}-1\over2}\] | 13 × 347 × 4153 × 762239 × 78539233 × 2125048865543<13> × 5907694552891069<16> × 30985428700388045508959018054392810762033149280306907746766819<62> × 48433311198240440197652048216611864233384923675896910159211602068750441025036444998298115855985739097830513112646288817274535923452133901<137> |