Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 157: | \[{19^{157}-1\over18}\] | 14759 × 49992407412483119<17> × 43760458210538630082077590698540615332113095752260732284295139181791792269704002332380344679451424838441565422523951192316869246832478720787332501958679636718432826688736440032321<179> |