Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 163: | \[{11^{163}-1\over10}\] | 391313358915050362321<21> × 1568405349185888385874441<25> × 9099650067199561704328141988388152825157832350700762978797212278487980011831889870102806919200161767008421328041132689960013<124> |