Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 70: | \[{14^{70}-1\over13}\] | 3 × 52 × 11 × 71 × 101 × 3761 × 2985431 × 7027567 × 8108731 × 1153528236782084716841<22> × 2984619585279628795345143571<28> |