Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 322: | \[{18^{322}-1\over17}\] | 19 × 47 × 449 × 599 × 63113 × 80207 × 7468009 × 32222107 × 56683271 × 60226429201<11> × 7701002411155649<16> × 20801237997245359<17> × 1865040051943737561257<22> × 3913037558632733048069409307<28> × 60597911009221555241268443356470120479697190071627155794893088601<65> × 2943744814763072252961387941055728753318067954033644624815128581681<67> × 44529188608844721557053246819526902299796345086053503169404115015780193754975413380033452872668067208637738493054784880042561947264874710339<140> |