Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 213: | \[{19^{213}-1\over18}\] | 3 × 127 × 17041 × 49417 × 529519 × 334006579 × 19840332702980239<17> × 1367953340395774788360889<25> × 15039779687938609372385845398208131004523<41> × 568132704907084159775521950303386934054048333908892736864323156601522840872590440544389429001606226739235544786275082403732954818391357216645003580462891898758825101<165> |