Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 265: | \[{31^{265}-1\over30}\] | 5 × 11 × 17351 × 218149 × 27257810022431<14> × 2210276655188599<16> × 87762561107476310971<20> × 1593405992841712852324481273<28> × 478103814896755465120707905491<30> × [6459392052463762782142349862154658786830397077211486632629943345372723225982262548474768909079459151142229645407569379763383454861550745037030712747864910382586166255962269499078712818692359129738536897865592399402546942230380916886150179047617705025141950502002901279667346221<277>] |