tables > repunit > 20

Base 20 Repunits

Table

Viewing: 987 – 987 << prev next >>

(available: 0-999)

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

* 987: \[{20^{987}-1\over19}\] 29 × 71 × 421 × 659 × 1129 × 4889 × 32719 × 460951 × 134561659 × 8442733531<10> × 29443043029<11> × 790551835729<12> × 1930941642781<13> × 11670302670769<14> × 271003351485155759<18> × 87910897915022054334374219609<29> × 83956558156098889105419680100622902899696263817011<50> × 5603803142534154347440575080572697963602222648003165314358382754858271<70> × 645865865692276592940999878687111387406668498773680096176014368962676968551715117514442286125433058012834864313571165312945981444322223846388460263026425896783085138036483653539686112152581543847372229680205313174552820545033193986297089031348767004492707569700045070451263395000300038510845765963721503788235141377783435290076799162410801<339> × [335578064215874120758440671300275062118193601832142569766589813520603021915124706745794947941080470664602804795960301933108599998001031449936584819926046539870192729009032517406772120025644397630741620792450677918681087753129002439606768261206167933301772830186195242923245281990140466290775648418280962623652070846522723808644446125976689304642300759113755946364440124788125893628650543535561239825213144959539756003234724649726807620367161020706229133064173847606549917850841553592177657892274567627684933762880582799420740002122135267369599387659436696494134607150176874430285128472164208996359000248303911918744616004352470953907787235579279268405406774376699516476977706432069870419<687>]

Index range: 987 – 987 << prev next >>