Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 262: | \[{19^{262}-1\over18}\] | 22 × 5 × 263 × 1049 × 100484262131459<15> × 299402873808557<15> × 32228870928416430067<20> × 578521787170375723397796428813161563746388908361847989001658233792132225199760727224481916196442859409303368239771341723218131777413523<135> × 1938611967873769793252110090372517854621751607606734935225796132232645150394388923625550992974661043875221305127448449720981686247470462035064011<145> |