Base 21 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 402: | 2 × 11 × 269 × 421 × 463 × 278051 × 2603353 × 29590819 × 100077097 × 4797582169<10> × 31010678383<11> × 43925426158099<14> × 324363426169571<15> × 312929837239650768379490219650039<33> × 71028332352256443443129296219339913167<38> × 178567538270106482711574632719239220215367907500387<51> × 248478587618584536755319688435418841285322812797461231<54> × 1369501252121106703928519985000628072222986220169633485667148366711862873537<76> × 6340822630701755986496764672651013784788497018816491797711071984283214713483666711<82> × 3792971418457965389675832305015939195690902455910881351101537130499197325189758118422778432861005947731663484547307<115> |