Base 14 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 117: | \[{14^{117}-1\over13}\] | 13 × 157 × 211 × 397 × 18973 × 761437 × 4158181 × 20097971479<11> × 29914249171<11> × 3114718734925279<16> × 3921141330646275580183<22> × 1528484187475617597653221<25> × 83430504324161161062615721<26> |