Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 75: | \[{12^{75}-1\over11}\] | 61 × 157 × 601 × 661 × 9781 × 22621 × 303551 × 80342401 × 12629757106815551<17> × 304388904961188288704032230609001<33> |