Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 67: | \[{25^{67}-1\over24}\] | 269 × 1609 × 26399 × 2454335007529<13> × 604088623657497125653141<24> × 11293772630057337854244300009061892827351888021<47> |