Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 856: | \[{6^{856}-1\over5}\] | 7 × 37 × 643 × 857 × 1297 × 154081 × 51141721 × 7254122353<10> × 5044140393054571<16> × 178540528582082489<18> × 45120213087522758245045677588529<32> × 11277573027736036722713586016689525331842510247329583574661742579<65> × 26126771741159407024154726661022582007126551676422442131468770568230221685230103991<83> × 2436720084656437623198838274388779009354520881879314632228515870143107043607898790296603431408753147620862795161758314977755958333681472949003232837<148> × 810881364338901331828630871220580996536285556711175082080566931771340017356751998918980662681802939380577523685941150697287091562264046008146764480773183779349278936780165406333942414887687894520121990772529808510892527097922019706154230396971530639503643193797584503208593<273> |