Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 181: | \[{16^{181}-1\over15}\] | 1811 × 9413 × 43441 × 1164193 × 7648337 × 31675363 × 28739737348957<14> × 178925762979037<15> × 3830538323149121<16> × 95016376135553173181<20> × 7923871097285295625344647665764672671<37> × 106646454159157789533685339377679881781493<42> × 17810163630112624579342811733978085990447907<44> |