Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 205: | \[{18^{205}-1\over17}\] | 412 × 1231 × 2711 × 501841 × 3811279 × 114341047 × 6386425681<10> × 394867037344695962525971723264825927<36> × 4072973180849863372572172087991305512339741545334128425746782506982246657221066933716711082258015117519873758864013805612464335879835779426594361062815219613526505032373906260848761<181> |