Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 480: | \[{13^{480}-1\over12}\] | 25 × 3 × 52 × 7 × 11 × 17 × 31 × 41 × 61 × 97 × 157 × 241 × 421 × 601 × 641 × 1009 × 2411 × 2657 × 4441 × 4651 × 8161 × 14281 × 28393 × 29881 × 30941 × 88993 × 161971 × 217561 × 441281 × 444641 × 3129121 × 4335041 × 28325071 × 283763713 × 407865361 × 460655521 × 815702161 × 1030309681 × 1453046401 × 2643964801 × 18855524641<11> × 127028743393<12> × 233029379521<12> × 543124566401<12> × 659481276875569<15> × 1116130730334721<16> × 1266394281048641<16> × 403791981344275297<18> × 56156144390197362704881<23> × 71959448437394390697988942241<29> × 442779263234039928595359287744639041<36> × 298630427465034388053076938177326459297282487329761<51> × 2795615491857109557417557981596924843640688091429986645604156232355499944998436754899912323024017937786781665959681<115> |