Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 231: | \[{6^{231}-1\over5}\] | 23 × 43 × 67 × 55987 × 3154757 × 1822428931 × 174090854323<12> × 45686117391553<14> × 1526323866435523<16> × 484847574510970082567<21> × 84002092056248016278479853<26> × 83531679812360869820818648177<29> × 128540676570302588488814103693493316947<39> |