Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 201: | \[{7^{201}-1\over6}\] | 3 × 19 × 85627 × 228337 × 147300841 × 206244761 × 132955527487<12> × 775594571863<12> × 98527557194917<14> × 428995274049217<15> × 10052011757370829033540932021825161<35> × 8228115818052045497275065243421056427267492325378156143<55> |