Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 393: | \[{19^{393}-1\over18}\] | 3 × 127 × 787 × 1049 × 130477 × 146197 × 4716001 × 47385209035141<14> × 100484262131459<15> × 299402873808557<15> × 307252067556287612601328021<27> × 520480208760213508917692659787572064131<39> × 578521787170375723397796428813161563746388908361847989001658233792132225199760727224481916196442859409303368239771341723218131777413523<135> × [528391222545376701390888302879204184433248673710602122887327962312950677865136508038988500159048168866944662412677821518960930443502125404630474806671527294174666731873071270423217198098288768815304037597815741585255498692339201910137<234>] |