Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 642: | \[{6^{642}-1\over5}\] | 7 × 31 × 43 × 643 × 2651847769 × 5044140393054571<16> × 24212302455882717029271553<26> × 3989017680658351355297802631081<31> × 11277573027736036722713586016689525331842510247329583574661742579<65> × 26126771741159407024154726661022582007126551676422442131468770568230221685230103991<83> × 8053730166884380014450383018259499521845366401662790356405702357639719043096356088427300048532289543979374667<109> × 406871526922584360003812600735241591853576192168016532286620776691934034345681231475871998082361369858895770432809181748652030642028761175008805452298506999<156> |