tables > repunit > 20

Base 20 Repunits

Table

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

* 281: \[{20^{281}-1\over19}\] 59011 × 1071377650025662608019409<25> × [323444390855716119915537221868631158989731812956390252557509005431837315396405408488019599005712968847103746298661197412645693427743916310338079397112819419372510926508949301954589580520897977630554455619757067163514385992170762775571409094362111238189129489676645844793544504031967658330955316185303967149333932867908834591822428347079<336>]

Index range: 281 – 281 << prev next >>