Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 261: | \[{23^{261}-1\over22}\] | 7 × 19 × 79 × 233 × 349 × 523 × 1741 × 10789 × 85087 × 6751027 × 7792003 × 9387997 × 11410109 × 184599907 × 1045137439 × 32351059359828638983<20> × 356760584484267703279<21> × 2081506019100642583747681101337<31> × 539663328402275849838576215379605746057<39> × 2533406685369752810514621031427854602769227721<46> × 532102984552701948922259157018137218458817574714153802255229<60> × 86294763170269939343407872367369622131038129164623316794443552683331187<71> |