Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 285: | \[{19^{285}-1\over18}\] | 3 × 31 × 127 × 151 × 211 × 229 × 911 × 1901 × 2281 × 6841 × 2460181 × 80558460464029837<17> × 81403978301424181910737<23> × 109912203092239643840221<24> × 58586321603695857848685588254120444000338059307507557951422037179294963122412142809939381<89> × [6394562703471500991910621012487223079164019243081991129188092499057396966556603294646553607324051665808804550005852071985878015015577140304470569906920342191899088326616523529116281<181>] |