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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 #1100000009023662819 1,796 digits created 2026-07-30

Value

42861221759630215202028632772088202139558289731140380828632005588897384302971187702497325454304964464540013578463369821587202066466926287409605065995249934127581682275118837954029706906994099397590541640346582063589717257581913466831367721805133848052117037069535197326031055189360103638994192828509328576128113799641671051136318059010133583460081962050503842895292865856042646724602356017872015653823611923884172533854551934654171145612812144463905745377237690015711792206768930880892183931966400482404602042822068469985016286181836167001293134842249697199020720879657948234908430047820769850460326840535287539814877103231922673596718706501910615538311953159801587113413759570675257940107162065705393488622597468027451396653492638213007928271038472411441189996855396247179407677717049238960928710425530688544551477443604471805682006425961626771451604019542005663311593224829337966185151190730758485457623402271518751704304523043488301856779300145764040815007669416834984649761020991934802729662564131856325132459983021654774924749037895272324400118585848887033399413158504233501577343167403855936248392958266425758081149073191456296441670336849008675129078638106111661290583003656972765032865631009562574503135525651887081374036419884265995550828154138306268414979270301108813492727696289783401878384866308131340664502618142048702798785161544883019582550117315666656798578587718144213635107102576917958460624889871554596131474767284185794557483335113508233659788030063688860102894192084638540371845972282371408698828125718601949458560999931623137974230419767771915821590248511331921756799319280290097823775377729139308221120120763162605825075662494376831356054049583762044016284571412318557218452506986219999536920395798985375293230486337673521699022291146086459818670080174000836034180848451323
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 75 of the certificate chain of a 2,761-digit prime (214 intermediate primes).

Certified number2,761-digit prime
Certificatedownload
Certificate chainshow step 75 of 214

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009023662819 --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":1100000009023662819},"decimal":true,"detail":2}}'