Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 396: | \[{15^{396}-1\over14}\] | 25 × 13 × 19 × 23 × 37 × 67 × 113 × 199 × 211 × 241 × 397 × 463 × 541 × 617 × 739 × 811 × 859 × 2333 × 3877 × 5347 × 8537 × 21061 × 55243 × 63493 × 18421129 × 363567733 × 3055718821 × 18510347197<11> × 23504771357<11> × 62475406423<11> × 135088596919<12> × 3506657472973<13> × 4969143820807<13> × 3190935400986169<16> × 536554814380116068153<21> × 654726612083455934881<21> × 1741078786797952487623<22> × 62387033227922102074789096981<29> × 160820182382287626017490443033251<33> × 71472830417465766173099456354984223218647<41> × 6442272424275989136635808656620063452431693173<46> × 65764879203418157849024999875881699743139174694584621983814719119780055958311173<80> |