tables > repunit > 21

Base 21 Repunits

Table

Viewing: 509 – 509 << prev next >>

(available: 0-999)

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

* 509: \[{21^{509}-1\over20}\] 4073 × 41081709653<11> × [3055118815901177298350053980943737849489472213785760532617512676559273527277818337171567635415296576833347243088524039041666449370327025770483861557457245474583486516183251349357818893877042636484373522558995307775210030651474049073467264691889801514609380623804142757765829687061537209452695214022501865706533725098198884036080848252639249314043687739751044018386879043039848197931131462816710558800345194220652878505369112509123025016031201681980425090158303768922608235572039220905519508638336816626115628354969873792163100509267647921046615021992402354765830344172912873838738739715281651739663483637583222932206329622363280215503911217236603915773087641<658>]

Index range: 509 – 509 << prev next >>