Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 75: | \[{11^{75}-1\over10}\] | 52 × 7 × 19 × 151 × 3001 × 3221 × 24151 × 59302051 × 195019441 × 1826934301 × 1856458657451<13> × 27665283091695977275201<23> |