Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 285: | \[{15^{285}-1\over14}\] | 11 × 61 × 191 × 241 × 2281 × 4931 × 4272113 × 37844581 × 39225301 × 292582141 × 65959677431<11> × 316427128981<12> × 16120466697541<14> × 370649274902657<15> × 136918989719096015219043061<27> × 6969521913939651515520634098282421<34> × 53646760619478852868446148978613461<35> × 353424058867125396513542725081357813010609729278471262111403895782573241<72> × 7536813343189623997417552792155551614461663679658800041755580645489746341<73> |