Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 398: | \[{6^{398}-1\over5}\] | 7 × 797 × 191837 × 3693839 × 236029523 × 3799311562897<13> × 31878912911333<14> × 77719140435208369<17> × 484493690172684383<18> × 2389106853487241752315685035579349880354989277451<49> × 21763887113341398290990026102970140151433880215187046178128368610740515553<74> × 4574019968528193151507289820357397392422853604263002266533924082029664173716659577557941705772126729033<103> |