Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
139: | \[{17^{139}-1\over16}\] | 7229 × 374935543 × 9665924510383104304333761973<28> × 7062233146977317532978372830933714969<37> × 363965150189128382558588440758428723796386766954039892396537253733898583545573075022742522373<93> |