Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 393: | \[{9^{393}-1\over8}\] | 7 × 13 × 263 × 787 × 7518277682653<13> × 108011509521661<15> × 105908420015767433134846003<27> × 114742271896804438572098194909<30> × 881304930739946561320646289889<30> × 56001277028049380949405830104332667<35> × 3005757082879233509546979146603885473<37> × 2083574227432941258356498327796750385623056105089493677<55> × 605199588591144003100881306574406851660288427740394885828171<60> × 3741247222374828182208251478581570961627187161736862769142116077118157<70> |