Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 143: | \[{23^{143}-1\over22}\] | 11 × 365509 × 47691619 × 480393499 × 3937230404603<13> × 4417279426528541<16> × 4468716518359645307958218397014993946731<40> × 3386876915569818299520296151758111534240041248356773631683354581971857862916297071778613379923539206899<103> |