Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 268: | \[{19^{268}-1\over18}\] | 23 × 5 × 181 × 269 × 122641223 × 380877313 × 588518621 × 1060719211 × 1650922227287<13> × 3269963183953<13> × 47852968968481<14> × 24299939580826833879511<23> × 9698334048518927281341930216877<31> × 111718923317519780739416742825495315326353<42> × 381342731267265292134313665147242334147321174879355379<54> × 1916445929697480743598437274020663265843843204576567372430214214494097388479827530472769782274857744331848625446033<115> |