tables > repunit > 21

Base 21 Repunits

Table

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

662: \[{21^{662}-1\over20}\] 2 × 11 × 1987 × 5297 × 59452151251<11> × 646100944659581<15> × 1983347198303205961<19> × 5359354833084645908533<22> × 577501437757043311527577<24> × 15098699522431383545272567<26> × 16398438839408956143977892542184798576522965363318798076723295239710939113287517040017136256787199097547565757202813784462399286976583492191823120720361289650164307331084917918027224355492872818369851815067795445244255869978987679380900364467362845329401658002450889302359289729743767021740956749490567537259116372506556345079971910449263125490851436074889429<359> × 753734287532058326754354303389939587144515988488447096434766352724402153081275363819277458570297153162828322574487165785736573104358277334601213751474532424670669603555263297037924186269515453939190900422338990503940558853689026209015295530927503628106442473369667788914748365584131730738465682627280238109237472851548342854391047190992983587675022152735567422711300638729310006366211965650313<393>

Index range: 662 – 662 << prev next >>