Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
178: | \[{19^{178}-1\over18}\] | 22 × 5 × 179 × 158243 × 100406562593700976489171<24> × 118293272961343294236707411837556445045369798697<48> × 1720901183531239349012688140133047029014990457707112465660939<61> × 1991511641305906595444902842736305161490856691155674104014444795547589309174118116074569<88> |