Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 374: | \[{15^{374}-1\over14}\] | 24 × 23 × 67 × 137 × 443 × 463 × 2333 × 8537 × 17744057 × 1045002649 × 6734509609<10> × 23504771357<11> × 37375160791<11> × 101462866544971<15> × 260023469773321<15> × 8368786908686777<16> × 3916703999765344129<19> × 996745264013355671299<21> × 62638659440216674824829538268854548201<38> × 8165033250687393329899487762871812765852983963917514621668214084888463880668484888967017261859507971437<103> × 7720616859833014920244488148559526650319156453154610617626507282349907796702605429692105538461207118232246612527035805386213820728843324699199716097<148> |