Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 199: | \[{6^{199}-1\over5}\] | 797 × 191837 × 3693839 × 484493690172684383<18> × 2389106853487241752315685035579349880354989277451<49> × 21763887113341398290990026102970140151433880215187046178128368610740515553<74> |