tables > repunit > 21

Base 21 Repunits

Table

Viewing: 623 – 623 << prev next >>

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

* 623: \[{21^{623}-1\over20}\] 43 × 631 × 3319 × 149521 × 239233 × 1125139 × 4762213 × 138348511207<12> × 1719937817227174896868741057213630597485253956382680484361683645714455944660556942937263903929864448451087<106> × [673069709885877834802614746451877747721303793804767630523714166034144412344922593723893453794266741459971743295340996844903206393368829128715249466592868002194374972742130503421196580237185363188575758211070908487207211040925133385926992996839772888847686857442026747150462522344019835695727126676912267039140679023319314849597169789359160453413693780089273785957583305049617988997095363546085222007875234400161858835413644834218250112909429419707821293156368262380092816286095078712207852135224911315311310286392908667040783840903800624782232678945029057363959745561479644810515932786561971040191159278885248072505030065997981319574457444343986411579940891070499197886739631<675>]

Index range: 623 – 623 << prev next >>