Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 139: | \[{14^{139}-1\over13}\] | 1150607807 × 137064911667506732158728978936220986108098784433410907616698757370447520540978435508644528166505795327805396295353152224323059789644859968349481588613<150> |