Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 79: | \[{17^{79}-1\over16}\] | 2371 × 8849 × 32233 × 95294351981<11> × 15565073214383744299753594766453955551010962009527408014734638227062006641<74> |