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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 #1100000008674981361 5,766 digits created 2026-03-09

Value

198185588230340927245001900477927346624419063292105243434834798570375958422261183259042416095122610934686726437615419386525338208587411362415616949868299263427241226443168125992923618521410938977442814086059931240456222786760963190306877322937583459031007492451373703625000120942246219519490978022826628444361587935964903065612408523782448487847943585937197387400527089190472402742064237949737926248172219284844016356730351356957154476272438214666326216386910091115265194436378503192342200331241241485715681376270897290916378748521697128479029150697477105342932315650160506999193508768760720674075024228902804453176125421589687990408099001969354424931315235405594523569579971534469145469500319142072881775873292787517908020471767578836774372686457600098252374675859635420169668578115597332587560769955622948624651423350167599863299277827911014193299294927234473818538763540363891465884688792228524187199629306477500268811640096894205806144842118899220083299224504396143516864972242204508934250467908561377001666892963778060877025217581345512429500767584246941399074055732932428602553752575388762987062148819119953294167993934029322913940131879715419650808095249292295840172869852318328606985220782223729985953948926763614949949969895743208770631675814105629870595799138791063316756698790158090311305730821385852770951891291363953726954182511547233314574695012004145621163776024143778896983310825017827007268080541342742023555039647031534827065355756747920705181678378056335138301349038987200172056561945007364897464057936669280897510474352544255757281243149379299363297032998987741047938671776897388984270258596203982083611530180374711180692284268749066910190564544225413738583406891261654488012619464756581156532416131784941593997404566558452970312654156336160314988138882494519134647752581963945688010401687912053180715711488263746290158404575037144792812196265624613091224811387552062153310633451706862933851498803961085356101803557019584511017749095178032132234412591569055517424548930656350642666766850597717607714239246793463669572923771397251603247745773774187502484447594194194006440873043105530762730286636700936596908543794076050263715351767798325646015061093486539619402018764665375373558071464301865243698195611728529742243268713334183288278435942699619035148494562230206420461421837861918870416483437483140887835379857477317294746787206897643917852402126962665110534490470739070480412535153761407657965291168943236742089876731365221171009174683257359512645288700694185301284711506750409900995890598667481790149723829856602022631745145765449718714488889845759077859872343471497393726025291113855842269503703107926607033210663371093047331661366743616920015319403025905836743880618646215993462876902096252089498805697550342276318031661422372040888857239529095790193327810199899290013020934804829436625019200287723391866872293459898495463429143443132528002619231041448241795152218579579422166847489931768315671298774093779709623065656912840462300320819891603747880933652543249514928985376080779510468599396769906920712522029788076701413984114477167079157029404353385869489947885102126996315909128293829782964914831562108361651079204742714540869303358646562234412397295825842625509363307966865363353654222186312070056078440926506405057713437639782384795294412384482833009833030423695949730014210461615894327056377854786076706814519619159361557912527141844286502277195913765984577558457779844481360136530360983387365925894065287488616216630668960085438931612785819112295562590658529179565431779341834984226593872812840633894884529267036261986716292284495538098914936936445885028669283254711724536683180389381511756135307486759170668763126899875163987995857732642086054489302465020651381619840660642780393689721243935405277949873707739539445473009630499674966535620801002480908232477966553103456429670400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000879
term 880^1958+879
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Is factor of

Primality

Primality certificateproven prime

Proven by a stored certificate (5,766 digits).

Certificatedownload
Certificate chainshow steps
Uploaded byFredOnCyc

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008674981361 --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":1100000008674981361},"decimal":true,"detail":2}}'