Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 364: | \[{18^{364}-1\over17}\] | 52 × 132 × 19 × 29 × 53 × 79 × 131 × 449 × 521 × 1093 × 1373 × 2081 × 6917 × 8009 × 17837 × 21841 × 21997 × 80207 × 658477 × 1623833 × 5936659 × 17670017 × 32222107 × 213834713 × 4020180841 × 5601346141<10> × 29759719289<11> × 107888439023<12> × 15715445027621<14> × 340384248614957<15> × 1045708568010712061<19> × 10859270175991845304601383753<29> × 711222241720330487488398747116919911179853<42> × 421031363665984044493391690194047056977213938504967617704547978661<66> × 112783140426793842497796523520005671676041864614571928332291203413609<69> × 119941938141663914560035192594531172177434180409487272285332931752751273<72> |