tables > repunit > 21

Base 21 Repunits

Table

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

* 229: \[{21^{229}-1\over20}\] 9161 × [3351549324546723078940572336818223388028213924516940504874239858417490791041217197519814155568521945445832782330408561839723257050665299602503936542311868204017040122108636703563107050139317972588940174476587335646101344261575178029952957348373321974189262095893825870412395946639875585670001169509<298>]

Index range: 229 – 229 << prev next >>