Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
203: | \[{6^{203}-1\over5}\] | 55987 × 1458188789 × 7369130657357778596659<22> × 432549126887388039664858367<27> × 70856741285081992357902140491469385810425671466661424166221373643548664353228558372719812968017<95> |