Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 412: | \[{19^{412}-1\over18}\] | 23 × 5 × 181 × 1031 × 25339 × 154501 × 172217 × 311473 × 1175437 × 201042817 × 405834978467<12> × 50625374013984968778989<23> × 795356493696100735275858305466442450979<39> × 31388488719729499196309105908882161764728016396176309609484685238878799220041498699080007<89> × 2781054154752782883032125779881884379761516802550397017190960448523488191754317061752510502291353191102716115805637<115> × [7383280068101036311798616541218943181174861155858891993906107700238728040851058708573894496393132089322025145144049953124659324723857074773718701739049430796797436225129434574863088418183012235347722878225141<208>] |