Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 282: | \[{18^{282}-1\over17}\] | 73 × 19 × 283 × 307 × 20681 × 66271 × 468121 × 1286609209 × 516850501955569<15> × 2265788967915227678109312241889713<34> × 1168075952295286774045290370148972359<37> × 164553564709154162283579361428414340468207<42> × 8694595042987947457948937711495049931245163<43> × 283000552804612324998031105442040281801013193565594903<54> × 220457930534194381670375886710641169993751935482403750882949134942603317518891374824843308606626737<99> |