Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 81: | \[{25^{81}-1\over24}\] | 34 × 7 × 19 × 31 × 109 × 163 × 271 × 487 × 829 × 1783 × 4159 × 4861 × 5023 × 5167 × 31051 × 16018507 × 2066067271380136212224701233463<31> × 11419697846380955982026777206637491<35> |