Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 483: | \[{18^{483}-1\over17}\] | 74 × 47 × 449 × 599 × 967 × 4831 × 80207 × 7468009 × 56683271 × 60226429201<11> × 156107192084257<15> × 7701002411155649<16> × 20801237997245359<17> × 19893611384319167357857<23> × 3238641984093228999583539943<28> × 3335831283765997129468848570484932171598514072932729<52> × 60597911009221555241268443356470120479697190071627155794893088601<65> × 2943744814763072252961387941055728753318067954033644624815128581681<67> × [418974325903660920011996351386314810663635367528982050586151554845882555936577661819671155404997834189802201025113466003456956261094745662432255181291126423020009061508823091567078243708698068577809498280791677143466404415993739024730915262884879433948946411686243249348384160903<279>] |