Base 26 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 103: | \[{26^{103}-1\over25}\] | 1031 × 11743 × 182505982948792599736515172596637296969192064554508986986431664077607625539277041093151206777908633559621170880212873217149612948660590191<138> |