Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 300: | \[{31^{300}-1\over30}\] | 26 × 3 × 52 × 72 × 11 × 13 × 19 × 37 × 41 × 61 × 101 × 151 × 181 × 331 × 1601 × 1901 × 2521 × 4951 × 17351 × 21001 × 21821 × 25621 × 214651 × 922561 × 1529401 × 4726301 × 13277801 × 327412201 × 4707206941<10> × 304643210761<12> × 880374069121<12> × 29777432504101<14> × 20235942281002951<17> × 997936488044528101<18> × 74770514303869505101<20> × 2994938361626916310097900969699892125851<40> × 3501657367414706842740228842877270821401<40> × 100114014709900409694207758978066381032100274063451<51> × 281887891699576309494931758688962111082311886906752520001<57> × 1953325452686186205705465362009154312014044318106368837005993707701<67> |