tables > repunit > 21

Base 21 Repunits

Table

Viewing: 656 – 656 << prev next >>

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

* 656: \[{21^{656}-1\over20}\] 24 × 11 × 13 × 17 × 83 × 1231 × 62897 × 97241 × 300673 × 1719049 × 1766117 × 3372169 × 14122861 × 83218931 × 17222085343<11> × 153065748541<12> × 914531249431<12> × 52899783148909<14> × 166149756476309<15> × 3626347326392241033697<22> × 44631826706164506918222233<26> × 294168762061816395873078148041249581<36> × 2082627716077041670357143339079154939745481<43> × 33985282117517881270903492784746835442538163<44> × 799071455809679496983356625426375581688059909<45> × 12622814878907184100865777660198685431286629416654696859110753<62> × 5278066012653015191398365442569622203916175896533715517667649358417009<70> × [355389765605036727598027590075795377548716582056686418330407165109463265164699766721165095128423474522875678741730494490625858816863536236022587107274305355242827331847698132010360065128936880955126199543409540555668793839572079057053709622319433242021685273205808264846400581839273812896614193939847613487816690703280584429981077858994511522173846964147320423867578368959315943094228756655531708041633<402>]

Index range: 656 – 656 << prev next >>