Base 26 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 75: | \[{26^{75}-1\over25}\] | 52 × 11 × 19 × 37 × 8641 × 9661 × 317701 × 2906801 × 20785291 × 4315817869647001<16> × 45054418717916808461851<23> × 8814475833133650227654220058873651<34> |