Base 21 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 357: | 43 × 463 × 631 × 2143 × 3319 × 4789 × 6427 × 14281 × 38047 × 44983 × 227633407 × 2878387471 × 180250982879958649<18> × 1502097124754084594737<22> × 1435522079013559680946783<25> × 2799538602198455356994757392557147<34> × 51233569124705721849500009982296618143<38> × 228981930777446745490310485965805923037<39> × 7041459344460601553697442487506088476829479<43> × 19822950076647947256661837016844167085154211713<47> × 51795029529143990575189505189305313255299970041<47> × 132506530997700035623197887840630748294028546026975447376789486722138596814606869119722253099733700823057281289<111> |