Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 177: | \[{14^{177}-1\over13}\] | 211 × 28439 × 174877 × 1139110880064821580931661<25> × 24767119132357657614800634927115469281<38> × 99341435535614774169060040354379474929<38> × 1915215144277643741269342531888944403592507040841288203876148302434908087688067542102414263<91> |