Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 254: | \[{23^{254}-1\over22}\] | 23 × 3 × 509 × 5843 × 7621 × 98317389091<11> × 123971678128031<15> × 231341492176352686686007<24> × 2097003474416062628850098237<28> × 679455169189242703049098270848161951396950782543663821053844511395947<69> × 435339515061310702749395052218328583580648733225723533337320192796281251<72> × 361473446542692828044673587543270039024739097001936443748555179516081571230451497844177088557450070328456976662904971<117> |