Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 76: | \[{11^{76}-1\over10}\] | 23 × 3 × 61 × 191 × 229 × 83791 × 1390636259 × 1990415149 × 6115909044841454629<19> × 15403468930064931175264655869<29> |