Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 151: | \[{6^{151}-1\over5}\] | 2623968964411<13> × 4956504421137000338429923175878885954098593563<46> × 48723066259314477894157817245533780187559387828254264047307<59> |