Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 530: | \[{31^{530}-1\over30}\] | 25 × 5 × 11 × 41 × 107 × 1061 × 17351 × 21821 × 83423 × 185183 × 218149 × 19503537629<11> × 27257810022431<14> × 2210276655188599<16> × 237821694156719641<18> × 87762561107476310971<20> × 88387933035190440551<20> × 1593405992841712852324481273<28> × 478103814896755465120707905491<30> × 113900949304539450007305173955673<33> × [6459392052463762782142349862154658786830397077211486632629943345372723225982262548474768909079459151142229645407569379763383454861550745037030712747864910382586166255962269499078712818692359129738536897865592399402546942230380916886150179047617705025141950502002901279667346221<277>] × [69305726166000710829782583962044644380197521899544329546575481891661944392817148672566328355451680491692689279372454078757699198173774538086569581675083407868159538103009125953669811563553271109316580201733683117739273686526062886356001523772148904415873918482538297799494174775871136313258281<293>] |