Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 48: | \[{12^{48}-1\over11}\] | 5 × 7 × 13 × 17 × 19 × 29 × 89 × 97 × 157 × 193 × 233 × 7681 × 20593 × 40609 × 260753 × 2227777 × 592734049 |