Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 54: | \[{12^{54}-1\over11}\] | 7 × 13 × 19 × 37 × 109 × 157 × 271 × 487 × 1657 × 1801 × 39097 × 80749 × 306829 × 47336293 × 86769286104133<14> |