Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 42: | \[{12^{42}-1\over11}\] | 72 × 13 × 19 × 43 × 157 × 211 × 659 × 4943 × 13063 × 17011 × 1885339 × 8177824843189<13> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 42: | \[{12^{42}-1\over11}\] | 72 × 13 × 19 × 43 × 157 × 211 × 659 × 4943 × 13063 × 17011 × 1885339 × 8177824843189<13> |