Base 33 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 81: | \[{33^{81}-1\over32}\] | 37 × 163 × 1123 × 14419 × 267301 × 10760149 × 21895921 × 34905511 × 4723130458171<13> × 200185507133105036887<21> × 1789008262145448971023<22> × 85985242116269232116738202067<29> |