Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
90: | \[{11^{90}-1\over10}\] | 22 × 33 × 5 × 7 × 19 × 31 × 37 × 181 × 631 × 3221 × 13421 × 590077 × 1772893 × 7537711 × 195019441 × 86306335830799838011<20> × 9842332430037465033595921<25> |