Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 206: | \[{19^{206}-1\over18}\] | 22 × 5 × 1031 × 25339 × 405834978467<12> × 795356493696100735275858305466442450979<39> × 31388488719729499196309105908882161764728016396176309609484685238878799220041498699080007<89> × 2781054154752782883032125779881884379761516802550397017190960448523488191754317061752510502291353191102716115805637<115> |