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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 #1100000008805015367 4,155 digits created 2026-05-13

Value

731781726127122127567144848185668896112501295044597912227868804050097420426475351354024488217788987539938228758397547156655047014366713615178204849031763455236961082086032414072473854471679626717182385004552327628790231868873268829804055736454562576094171500932229391757244592769836799247260205308219918995945620039493367539196610223089204466232613562623066270125117244918994469934891874006400289910528207530497284405824137140037945784866978977557974137559008089175119907936119652574706877146951239179745108518237753072552976417918694706847749672624619093062095509103084581479341574632337412793907032725628422118692169163023755072444658462236407678571904230456760250158448568275298009314837895854365024037509596988490889479052790372801495744299639562242665793491514123130887056154902954299654446913337571337209541668271470862352959977742652068271917734005394227858762539688775321696042938532803773722603498632427051212522459849692257219310666938555728441246051730801174664607609276467708247814733382180203423180175620258150558765223070808567050008599346688896604972370283593825139900300086970652787798496526924747064027705279524572463760991534632196291709653757638271403657140722804601638186989677706035600938962699354983819013462080925238801749120820952200282485339967702868003189837262260572713027011310858977522237002353849007867041479359023270449686554719113402656745813351017787913103223028698514275587647696679530488000877415803467024197784301085747943533615372743787438873025798828655042679392700225730079729325519373583444214245111913737114634636232225885233072670918811438896249300821455058067537372519802517092620705037120809035406969745306122269879468257414377983784355555041497059196671682734776501150320554004375491317247202818833509139990801383734445038122099184724443665575495614129588088878449149006663509607162465740279212299540253389850225625750452872384567025824558482960004254634685775166172592641455112420609550573920233203820355418812521694052672866220725817771831151984266271694127422065299862831792639847026392565228215133245479297195323603350206079135849824302228240748485695279681941013430033344433218619268530859244075213068846170915206058674983762383200405920723197365272449442796812198160634058133530729337192995886846559313380300267992370177794442309068944168818569706795589996101887653512432392337332776212942563793279924757817656523051211884515070462372360568418346411436251682228197403454077686533548567748455902314164909371164592597602986319820259575212429235492536382414821272630180423521772531107696875860819925542374058339114206931904400062710880377742790613244533348365833650829038377793146394994982592913546218550464528576015696374252766375158659279953195365721727272261786270748926904392187951525866490487482045750095390299428932980924647338076151947538728847288053945300573788385251380970815873555192654159665038255876020832883104863206489318430955327507697088281128206218422302216432306887034328543180660164089939495450502682003867213549369330514559392785713616790556202683563979654945945375909314811408951181485400027615612166033441533644450091404070587653576557893908974611071933760252060424957299591452875107679879873575292180238534553279609726866584333764662152237051432210077079558754312525484590408166631000423483418400534181853753282399005462009635980121940053081917754987557466109082822855088315002773170275080516080988302476994934425739135605219466293370650031360791230861219515710492426738792416648414377583139439630199516877066688093565406012449044282915455073837655010754506388549461225921541652342917608806384776091636015886203190139444225207941250001397183267306807796714543255049862125753090157368112907186149021975175394281074127364057950881747935832182470864041994875108956352442361086888231407938633376502906530190702407789427383938311223314400438456127680105924922706667718245678451871774870117496801787227797289523258274879200948861096105889842921505817470422387840839548226373887159176030669056975984498203900164007156527059593480437949445519129934114784032753752506584171800436018353447213007526338949728041524375157165698010606834795051446224610243351484706094269997121454722558483284909501
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 53 of the certificate chain of a 4,903-digit prime (316 intermediate primes).

Certified number4,903-digit prime
Certificatedownload
Certificate chainshow step 53 of 316

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008805015367 --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":1100000008805015367},"decimal":true,"detail":2}}'