Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 415: | \[{18^{415}-1\over17}\] | 41 × 167 × 2711 × 39841 × 59263 × 4486151 × 7529761 × 145659191 × 297120911 × 187484789988797299081<21> × 86802964875867109109279559751944809<35> × 10547130976787567739760741415960485703934860841255807268617487<62> × [463805461351922161875715852535962558198373915916183666624629166947229612584741402576188462342789794187857865101877979512064025383816912773022397699392746800448443040380605717978241064868019618996001904460066444920765455841254607679991152400790080179849294692950380333098416131462056730267582963766608576241897895407096922235771010967093833067625491108536121<357>] |