Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 150: | \[{31^{150}-1\over30}\] | 25 × 3 × 52 × 72 × 11 × 19 × 41 × 101 × 151 × 331 × 1901 × 2521 × 4951 × 17351 × 21001 × 21821 × 214651 × 4726301 × 13277801 × 327412201 × 880374069121<12> × 20235942281002951<17> × 997936488044528101<18> × 74770514303869505101<20> × 2994938361626916310097900969699892125851<40> × 100114014709900409694207758978066381032100274063451<51> |