Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 79: | \[{14^{79}-1\over13}\] | 11289101 × 38775097 × 615119103307672084324408929574434035093551952429110669871322453424027065503<75> |