Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 309: | \[{9^{309}-1\over8}\] | 7 × 13 × 619 × 1237 × 2473 × 16069 × 48823 × 524683 × 11719753 × 3661040653 × 18099109531<11> × 543331633447330149089377<24> × 1535090713229126909942383374434289901<37> × 3788734765226760304517052348776005195050727<43> × 6957596529882152968992225251835887181478451547013<49> × 749335951439164525377086885547523308245903253216162065126714079755203786701196169473212913<90> |