Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 642: | \[{10^{642}-1\over9}\] | 3 × 7 × 11 × 13 × 37 × 643 × 1499 × 28463 × 74687 × 392263 × 795653 × 999809 × 7569823 × 9885089 × 167805961 × 215257037 × 2386760191 × 2366998879807<13> × 511399538427507881<18> × 646826950155548399<18> × 899788378170104270110161037<27> × 10288079467222538791302311556310051849<38> × 9140689231828972552925524522037823147045937571379494322686226282352288670801988451<82> × 6816076420889383530061928052932135771677823056533405853711387425758295002889889651952292014505658492373383206329623842705963383073925056196658386867709651975318465023<166> × 536870618619383193962281769537913436162676545740172425043292056174870272278885790535713389169113545913247330891844724103638910604558267098693776384922291234880452137162105886041741931867313050881374774231<204> |