tables > repunit > 20

Base 20 Repunits

Table

Viewing: 670 – 670 << prev next >>

(available: 0-999)

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

* 670: \[{20^{670}-1\over19}\] 3 × 7 × 11 × 61 × 251 × 269 × 152381 × 369841 × 679381 × 906779 × 607366391 × 155933666228489<15> × 2673014734142881<16> × 521469361412813281843723876681<30> × 1675321819620801402895922892830936675785863439805780007540110904579241<70> × 141027529625834791277325880782894530434550121999834925322075700531980089<72> × 66219889087445251810182963092778964498224088258183388672238931598375498406306844664064610789170453306550048681889865111260494931551<131> × 1214214867014971601101751243801418852551726356121605532438216943888208186174367041815892084217249077009807440132870307661848368187519223837593595409193924351<157> × [31124903860458136936688088055307792347273863355041885163217085075987963000976358994887793006502854568610580820941031478168504968427903967124046943175330257709294465845479423301972077544405182838842096373979148012668246041173112133402458311731777583819505056404660189003052239031576902632217927431897677531975771257571482008911872215039932800021<344>]

Index range: 670 – 670 << prev next >>