Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 209: | \[{23^{209}-1\over22}\] | 11 × 419 × 2129 × 63877469 × 3937230404603<13> × 24939218613613<14> × 565938216306892140920209<24> × 445982649901995223937100061<27> × 1167896399822811185201881795141576285272616617636894470599602305434126411341968350181236674726776280485429430121424563039296360775941958931675569829656024874266203826366428488074840412474255879<193> |