Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
287: | \[{6^{287}-1\over5}\] | 55987 × 8648131 × 248848212837883<15> × 1854850885886497427178961<25> × 19106708212131851118884706786610752281311648999487079803812698608009563422447438992936738840337239567779835547929661606242389060396993346503053037828634438929144311772058497<173> |