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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000008655788016 3,836 digits created 2026-03-02

Value

87739878487864093064543133195158759291916093101122184517467033354213538981271078789130523912360738547946073644820498002475101668781329145988397997120887635053758859803061447199360358311149990535841566191348313842040711351852705878538581194293898657545182665414286986080604934293070018985510086907482343830507530961214310665713172092896518550910709059259778181430969751216439680368693933236926487545229244475917470094695463067360399105034141874589963210050397531482141042411290734656522563453795510469308713546526343540424625811926788232007972454865103702504635678385805254359062926331545082345997142712290607420014391119277854716118749112637577014575910381123050560409590563376194594846670487049651879926767163322154577848461256784301556617060360323570342922650872388007869696182532762136153375599843851512677235365081554330170944287060051517743842573638350300347300064203782159867145024925730375824315315332374207356728462185578543794413095271875214514839915754159230330124137002888550916670958199064213386206131589944838091915990957483822996772444609869504487698425266162721195443000868753233778389476581809751576508536636591731280408778353271562819396766041696584853673109404724017478420615112153785632205507913097097278694108238559899114847026895437938885401490440939484591940912552268546110706501027906012080837706220813648291627013628338144297685480842720679949948937082909574660953154918389531830654029421497708175930928041194772239188629592783509437871678232669477885542844126206005046545082624204578049251601456237596984893158327522463727303096888169507742877752687917117226526994247111394237453057045541557037168033693817162421702003643774082088800480897874538426563583621619582327888226366899461670503728487549833788744056867772499004844579366932257242397055539772494841711070899957992901421150286750346116862446956957861395093199177775728832357666294868684644638667045506018957134029805939057878541721406596773943411198395668854482572316731426482505562819662476952596333522070784885466021356088362502696366258265385836596236331208788728656969342890696433914428604252728278364803050344950383942393495121955241590440935927110808665588300184735681542455242954509762115099233790548124997883299453379012237797318180834899613504769794523027239549916844052427076416141023110512016232296199908178551716766457490825239610233641956107954104199726802148873699645957182190836831960665021755748026778275195368617514946638427473795707628270659887408033320569955785663501728155940900490950988347450810278406937487463953641464868746624917958781480988810548390502949016584772846852472662285060194308352797200117779731537328101469530280086952553109063580226071531687874905757562019078280982726337431217599069173253999872367492497030603189526099252950380699338324847409092490514364878255465400327150778797167121220810268309200761237418334734920438529675235225180890397819906930608955998598671470942319791246328294771369619949440236692733523270654023933830224752886435846619282465955999981266936920972765202960076158443849037564680483346573215927735878090685630628662070663356509745719161824961510409173142301724278456731214335717313812270742775080100114879458113192493082665677560898996690205609077228310579046116166598853743325086104069150433783941279422502015392442427409780449516185844149755675609262306030842632473940947656105921778088703587059097514152129672921234290633550937591774666959324160787227320755728776619345342045656216379511615385675856587864041428641553390229716068650744789471063481100123134793014897066897316413617788474903560918602869673248355640684010150471867295717360258834092491022020849707012488737061088226664093484121555288230721017825953106984370734820128999247268342822025075961377468942950451599229353921060810861966776585045028549351860367916781232939217286449185413725492396218804433291224523969487981995065759
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 162 of the certificate chain of a 6,194-digit prime (396 intermediate primes).

Certified number6,194-digit prime
Certificatedownload
Certificate chainshow step 162 of 396

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008655788016 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000008655788016},"decimal":true,"detail":2}}'