Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 217: | \[{19^{217}-1\over18}\] | 701 × 70841 × 20882247576919<14> × 243270318891483838103593381595151809701<39> × 6798135798865497631033489341815652274491843161361533818907179304863450515173698283535330767457466050787855600311141375678078048454147839688384910181895019142118019752256859912062182214416108186550305879151411784800479<217> |