Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 278: | \[{14^{278}-1\over13}\] | 3 × 5 × 1669 × 2503 × 245753 × 109816673 × 1150607807 × 32444271337<11> × 553342580209016298514917903872176526102737808189040569<54> × 67528839747002452855654876603050390749843019127756259443555283390695485101<74> × 137064911667506732158728978936220986108098784433410907616698757370447520540978435508644528166505795327805396295353152224323059789644859968349481588613<150> |