Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 331: | \[{18^{331}-1\over17}\] | 980423 × 1095790727 × 7593982727<10> × 11930003287<11> × 2761409845619609796002011601007424889<37> × [6844915933485086818937266701785080443168704423283347988725566774424892798940029023272513297540813019971165878917251955535793806514989513247366909211663909267306410747816915099089889312632067392006094051858341452843727217477416286909364589767653547066965422104473852087610684251853828998683138691354392073971444135412147008378159409666436228503<343>] |