Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
101: | \[{13^{101}-1\over12}\] | 1213 × 2214300387644795475106069490351281036761752410165858405300800926922235717085303811628037484076653499759427777<109> |