Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 190: | \[{15^{190}-1\over14}\] | 24 × 11 × 31 × 191 × 229 × 571 × 1531 × 2851 × 4931 × 13757 × 4272113 × 65959677431<11> × 370649274902657<15> × 439799488353587<15> × 1045074297886141<16> × 45186569761128841661272737901<29> × 66192523311449074597991545296985081<35> × 353424058867125396513542725081357813010609729278471262111403895782573241<72> |