Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 236: | \[{19^{236}-1\over18}\] | 23 × 5 × 181 × 1181 × 6373 × 229393 × 802873 × 33179477 × 26886160879<11> × 2137436868392576378753742282490375892837<40> × 156687420695376393002175628962984279857750240835307078733<57> × 155306613932666028670208812450645212905178047040045530562317564121001023821<75> × 7286218911238270308880973005150857467172607049833063544295604446608724988994985425880919549<91> |