Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 262: | \[{23^{262}-1\over22}\] | 23 × 3 × 263 × 3407 × 3931 × 742003717168625339<18> × 2338198321915790938865815731500274829<37> × 10253382155170470870257366391175533283442277524879<50> × 140666868670276840727867082154425523626715727566614330498252549393533412756943014075358588572216286998281<105> × 127315652020581809635877950134235880937494983694456654535291642552307893866435456996165213933747706701224053807078306058751385923293678249<138> |