tables > repunit > 28

Base 28 Repunits

Table

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Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

* 393: \[{28^{393}-1\over27}\] 3 × 271 × 787 × 9433 × 4335577 × 56897145979336067<17> × 24538826471975158928090069<26> × 13513551563645043981971054213977108126279091911541498002142712681928242888989514454611697417349390558232193761593547803870954834523196741481<140> × [4057576927496259618001635441018357457503400014588835890596834281355109171530228054596511499065279651022459088941626050015768438281000275081816274114767029817071744025528616776498596473313098603674084656177199222705463512203104241748069497910847509405139344947816528790415824396167805209999313454896068758000062629455787266046306409595876396955804795530711852953111408557<370>]

Index range: 393 – 393 << prev next >>