Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 494: | \[{31^{494}-1\over30}\] | 25 × 191 × 571 × 14251 × 17863 × 42407 × 248483 × 2426789 × 7908811 × 1319973929 × 9705249971<10> × 42716694944587<14> × 88770666332610762169<20> × 3545592640701962728192781<25> × [1028758294851324901672688535639659484863620721047112189395412066054071119294071973160540916526787436864328704276470724427676317783836975908447408771550791775351740313519181136187037435269673052781175743664224095742284446648457852770988304861586444568547269859717430172030695389770951208980380422229210499<304>] × [56574076180010996547662657665906989852134907479047775154434263157173756543347428780344597204861957817643570001162776386305555995638150485457051016031333048326201010107551139599438169197363245670872490064455575642873141892968869674889741801325597865940433064511492290478211478786882470421425928424886828739255286258827<317>] |