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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 #1100000009080540372 2,066 digits created 2026-08-13

Value

52080220551334070212372635633426119615810752114183186695079699285229304859220725743596255978493648049135084912802257252789659314134571209872315834888057002971904685581204183530334102255680013822055750085449991980670952973485684965975515215037738213719538759687511036405572133307966832641078487645574594203659923454583281600538465917790583362960088168369855824537956394688795741228428979753115988582373375707729049788015400636001715750899511345160278906126751509642698107405287360531438952562383812807174533686596402766141761803152240209987024398965926907099087126144078495367731722300536055393171124893856825486660253343794533796188087186499285254174356261836987158399412943923262068701832565983257677199446148236855304695787293417635689067669412303556468595350073551702919595737238627749676342934669348952804452673439948239594522954175288099640282730449690899779099710106438753519685930962546937758602651306319458228374210733889756015760619658110779590176281799438458563188232347448267574069508515925386041332545470265933806182474991493923372318464134947645139512143273365354271507178128731018426895087935219365346760564941996429805928049706126733900698806298523485388162529439371968173606865122125256829266049627292015035767211053560857052654889149202486819833159787519585617117359880309587471350500290542622547759872388999362187677397691380968315032329367656540110585524903407750100096172091257860485892043413229922535156500058799154751705306059847572248778164815079234187604551722235804635275609944490078879041234622436275793416208227300555533583216632973370281162096722573717304707043925907776286713082239076752177230213151740249963944859557900097759726862501165541176025707327274096068236216364378207651048846570128096482470642299009280820618687935312779665052984472352646708947808066556491010956370183720388531431729895199778809660969755405542122973953096348575355736677933336045370075959486099411625650801787641791118760865990801189103589763911597255483789709931372752143411184152873432610543775435789909040552135340333523744314119570082688769415144883793743
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 66 of the certificate chain of a 2,967-digit prime (224 intermediate primes).

Certified number2,967-digit prime
Certificatedownload
Certificate chainshow step 66 of 224

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080540372 --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":1100000009080540372},"decimal":true,"detail":2}}'