Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 378: | \[{18^{378}-1\over17}\] | 74 × 19 × 43 × 73 × 127 × 307 × 379 × 449 × 631 × 991 × 2143 × 6427 × 16633 × 23761 × 34327 × 46747 × 80207 × 253369 × 465841 × 1292257 × 1464049 × 4464073 × 32222107 × 147782881 × 337268233 × 430244137 × 607371619 × 31865908033<11> × 1234749313729<13> × 10346280217687<14> × 156107192084257<15> × 43237127713829239<17> × 75072892952027455633<20> × 443134151361467421266377<24> × 438367952373320063196326319859<30> × 6974796889885559915764172408527<31> × 4591020241431358911787281317666857153<37> × 104471216044501450890653209631992206413870976781985176404326041921<66> × 7841678324849200405623420061777111012459071278174661417695615725012542019771<76> |