tables > repunit > 21

Base 21 Repunits

Table

Viewing: 657 – 657 << prev next >>

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

* 657: \[{21^{657}-1\over20}\] 463 × 30661 × 36793 × 49057 × 85775383 × 127186478983<12> × 4072503517807<13> × 518345871043554451<18> × 188003670692248749667531096507<30> × 61696858341802393209061956517494037213<38> × 19898693551147310168930403737455235935457864432837633271728063037547573060993374242776699<89> × 5424905842809814580790135175148153005273370039115139875248165723989059011789226683837426053<91> × [3376620731248134191575074655719804963616270586261101248229471915399950017487300670419234954659925709130395730365410223874189228923237594376421410814217825800977108552796442766972313519499851875353212692610543663585064469862487249483395508294060283642205957771797116924851878185968396177710244571378609663530666846798038640446354129383706707059396466196795060167408840044953864337199853763460884989916208605230683410415521799449653046149216991982657182636404205618443858235241366477305144734266989686937041532724226320186807556551166288990953878630428167759<556>]

Index range: 657 – 657 << prev next >>