tables > repunit > 20

Base 20 Repunits

Table

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

* 293: \[{20^{293}-1\over19}\] 2216839 × 235684955463119<15> × 188349668354657265941797259<27> × 483786954766489013621339082898009<33> × [1759341313398522682197153942550274535404196150209519992143456860366930689081988340196174474563614996127711179752085145257508792951157780857889580471307642824752574471531464714671892048516923341281601972250210804964969283310254669788803699541826960297412407416656204017503355523696057931416626930609551<301>]

Index range: 293 – 293 << prev next >>