tables > repunit > 21

Base 21 Repunits

Table

Viewing: 389 – 389 << prev next >>

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

* 389: \[{21^{389}-1\over20}\] 255079344997<12> × 90124631274973<14> × [47946494676371462947710047462673576913574363133694960653294239389518967817373792525498500784321054889682597143701182458410731455414576342369244514439353956218001461337145056080337747640675081787217023710022634186165366094693671360948157962216736501648795055025006260329438487133065422781095609897413261162339163719310456045068262562871777394665396151582595125554546332946020443790499869008091280850790642632696117890840838806794890622421681007709624156093681307829101441972315592337888189<488>]

Index range: 389 – 389 << prev next >>