Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 262: | \[{13^{262}-1\over12}\] | 2 × 7 × 263 × 1049 × 135979 × 138599 × 400852141 × 490892172446892018395299483401013733502108754948584834868805508270451316700696057763430117315431878622536780964504820752843410079<129> × 41487334361603057312048774654172037632457953308477116028987937175903073319118756488103027477791090595495925993103319815533228278067115667<137> |