tables > repunit > 21

Base 21 Repunits

Table

Viewing: 507 – 507 << prev next >>

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

* 507: \[{21^{507}-1\over20}\] 79 × 463 × 547 × 1171 × 14197 × 189437 × 516094151 × 787331117 × 80459337199345300130638393<26> × 345506747872835788569817657<27> × 51032784753339594393762302249756328003879131971060424025791<59> × 4594130155343871975058851367976626872561710502528706854567172756009712468440851511490609405787706740526924640052740822297629391041650057319<139> × [6946512809954161478319198645467901453368368551543947425860849587964152585403547336870588921230185312106067616018798989074737474349150662225523035276256317961913698834493722773495246290464635870243953925064358012043867592323688252981608762993092383078185910820045463141747110081715509905727285892717208401992073076253172082893339486169990045999804857606839098904200509321984976939349<382>]

Index range: 507 – 507 << prev next >>