Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 40: | \[{12^{40}-1\over11}\] | 52 × 13 × 29 × 41 × 89 × 233 × 521 × 19141 × 22621 × 127921 × 67657441 × 85403261 |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 40: | \[{12^{40}-1\over11}\] | 52 × 13 × 29 × 41 × 89 × 233 × 521 × 19141 × 22621 × 127921 × 67657441 × 85403261 |