Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 209: | \[{14^{209}-1\over13}\] | 67 × 4027 × 6271 × 1154539 × 1055396497 × 459715689149916492091<21> × 281125817361812618433503<24> × 1918091099562165463638187<25> × 52280451354471876484887452069818382627426301367570009308531153187393380542465614532039169345229465486185065048680553285008779323550262876087229993<146> |