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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 #1100000008724591726 2,761 digits created 2026-04-04

Value

1256122352173192349691824113104965812931300606012224206881318241554029446878984339054962802410737324516591363728097219239819551589546421719459054060579215845895689496908288310606239470116592688001931114975454317136210660993083937428589806567691727427910767685850526562494288731411199515122795712820110414415167450230606727816084152178434053822018418654215697335850326877769252529389263494902505655580079175209812822004442978677365705852907673152250841992034471908897660020714733321628120751709127300228689413230889913754973163112340731455456522675374931901780909525907325807943931925437418022196357612122169520907590873525489421017710761478010790538897921963025189933762016051938106691449948395816138544983661536441654480477679290498465661284503329472527779135517312617459973067820597868755911805736763340615425157882456279810974376535528061632082450309726867649599454833018921229531944958654356160623837380502857107094046866209084672427599004685902477955692334586003464534990087342176581332301102146919601062405149803707748587784338783764826192302609466603523169994521379409889683181028760831350978721395255840809831039887544508516545604063950713489617660695327154078532980060542796118702054494384897021376895999019268255828421944953272615208073041626753866546493681364797844022027973732382412955116149178127265994641386675959340363165745474546531353507288240966532428964438519545963492624901319538003963475435199038012130285855611405037131870871100848219621993795365640551926270618394111567235674958026186057130229331613775752452583505615778335065012065663443285356078618824646102449340201415497519429137899445832171542300407405979875533010333290030837035087318096958349025206186764515900625372304977365433427712960805671265978179029720630003642686209493803704102713261993133795465400028546246661082211674090118915091169038520027075735621449188421213603737304503390893904445490372728373473143545111198682860026205226938888124068429111115387626701380092371094812183840852373596209304523005365260470399237523620216438855468778740580351582233943347221097577104444441010709690751586641596370483861031958969509462674028373603961470708038034282339634861438197938129938625877156033524296777155348350442313340471628464123473396072745068594482525945736389481708754780956747233921643957725471137872266601908578089187012603816404717919138415261974687988973272781028315453764743295318295802125104484045756085852476002866259956976783564207784695502013938572820700246013422940687149617473740101436558701565024960079439237076440754954801345543116261856751652717558233588403262855185903691608462811411092855562270790887341191658508816284216565862630816745153348818561276167677058401842565167290198269363478285947588401896390070064365107526756480402195877576530147331178956433
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 2,792-digit prime (204 intermediate primes).

Certified number2,792-digit prime
Certificatedownload
Certificate chainshow step 4 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008724591726 --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":1100000008724591726},"decimal":true,"detail":2}}'