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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 #1100000009071047604 2,111 digits created 2026-08-10

Value

64215980408570210209959032951063125105939249105181793722779333907405018263011717012721966263616927653567352040747646583831595750708480366608742904739820879615252888783870005566140629334001096299692691056423597664812891395411460223587883505935141554697363440994231354163274913664817166216675009042171171990829417282635333184220722938689809776371665106908757634409372083287409145968348776114754816212773296060986053065041220991872001197158483041785332798499135717989412073395308525962001976957802836910683770529582194758450078496626447416696213241930263555986223842773475503635314451256588851931347137678321189189395505465470689054418647437927289737135944179124179070183330888176540713651436008443339417902977065600262927992465034630610075028194962208087339651478307835286099086077525683016130663004776945452405276678510939001615212212335271704015517236258393228725395533502448621490031956653107172032891957460135484575319601474963538106524636309932172922242326704188453991079440664146090831300887377143985083637873777400593444416334992120835620096489258532503062374735854767706090806671510316757323461730320902158741695029358094882774505503298354052927175109329298445362313818572813191943118520528992571593104639564824744735960416641345313180332288324275068972840270557919816839506576189663100377679666419195242527452769745889499299172825512725168727902640503290199496649001331393306260526769454570046980181228563693161715196604113285334121753083553264493605200574797689864532269852787959099956284529198671622205146329773601042211344428833279251094245312467497634071319978026581327756600591268297880641457124045229486380791075987162430499244283962386070356932297837109300589345172040765495045808068440361731598320093611352605086770340626496466139057748800882858735553693126248759580493438579251208287284675172991405016271948141293523640399045105655529154898072209548150690722407884261144518946472444350996422474143203843629826879770552603583937106128000608970738763411052299708675603219222176236181807272763559067446556012478138616977933558207730632045405338419277844286812856703779523452876100519602603541464217
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 46 of the certificate chain of a 2,643-digit prime (201 intermediate primes).

Certified number2,643-digit prime
Certificatedownload
Certificate chainshow step 46 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009071047604 --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":1100000009071047604},"decimal":true,"detail":2}}'