Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 345: | \[{31^{345}-1\over30}\] | 3 × 5 × 11 × 139 × 331 × 2521 × 6211 × 9661 × 17351 × 342241 × 1164859 × 1509997 × 61562537 × 176542021 × 327412201 × 524818601 × 1447263271 × 2553526979752336381<19> × 7176374761323733117<19> × 452067372560611411171<21> × 975573640291548852951234645170717556781<39> × 1814392827075469009286547723958497289007356519948646784210029597394244012245475287978655917791234899524643597615301<115> × 2320692554213902480139010776264444452758096865759588526187312388095631638993342137379908868814374558604315102828365045237827645510351478447186203784781312032320844528755773361774218132539715047105225023109116578861311691<220> |