Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
141: | \[{17^{141}-1\over16}\] | 307 × 23723214648219238200859<23> × 423622795798733187216959754496018087627393990881167960767<57> × 6307927537341477895461942997546722737777790705376728483796844141933878453802006607345834931<91> |