Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 284: | \[{23^{284}-1\over22}\] | 24 × 3 × 5 × 53 × 2131 × 3572461080739379537<19> × 351156543156995844791<21> × 353245517860142207052022009<27> × 462692901698327060123361721<27> × 12689965311931555366531418920750153<35> × 23052022067431050825264764433875832941<38> × 568052473835599974924410345683581601087818620160006577423808749907783<69> × 26473813301278169535953932014720806893585199299441835076622331442369553820170885874976262344189904862477042837589593220675369311176827167972672873<146> |