Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 115: | \[{6^{115}-1\over5}\] | 5 × 47 × 139 × 311 × 461 × 1151 × 3221 × 44851 × 7505944891<10> × 257917526307345124973861<24> × 40752608049190149321816351186154151<35> |