tables > repunit > 20

Base 20 Repunits

Table

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(available: 0-999)

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

* 768: \[{20^{768}-1\over19}\] 32 × 7 × 13 × 17 × 97 × 127 × 193 × 257 × 401 × 421 × 577 × 641 × 769 × 1153 × 6529 × 7681 × 10369 × 12277 × 31177 × 36097 × 61057 × 160001 × 821113 × 675796129 × 1505882353 × 969759919969<12> × 4213987444481<13> × 19781545588481<14> × 12818782843691777<17> × 6756288659793814433<19> × 82832842974154279534081<23> × 457543353681844436585642037889<30> × 6016843417749425380073724334377601<34> × 26715523979628786958854098728207361<35> × 41421229588195582987688749156138489729<38> × 1824448644331953437805185594358681323803649<43> × 61750546109241021215734459867961040964362932229121<50> × 7269653794450334650395571246564962394472494027948417<52> × 156839980152800728021646204730001269580086006946735576131204987806231126567668202731547125644464093953<102> × 86463857536702314544956541440291367696121531011883157238778420153841598998532653995678443386556042528897<104> × [150751320449571924780068981914708902295625549623278953312664475989992357297143601093607603176669704465564379638067959901054550188777502929306079937508136961333159744820462408971215486740484642527903030706210128889467517250358026298659028772295274052857700820205702382502278349173284728550969925790912641583127196979559953131102721<330>]

Index range: 768 – 768 << prev next >>