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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 #1100000009112552827 1,844 digits created 2026-08-27

Value

85842448809916035735739524506957060177966410351519368785170188338063390033238659074205421784411624895224071991841045775928830860258248184810261812533214122558900257347098099916853922925799715792063274934051628357732859883166743010673244303528090528129416843381995020843957638445126559977500233873292025836561062327732210400243320456465810324862595979071652870210707359275044283156244420515611224044063843645865303954044394303609495294778247962679407373118470997417782241357622336373877770862411850777471455354066502739011478632938427460081627184243524902854331231888164767981382117212760007683376258584153721849996798548093492252661925732578009538000615361262999828354297673224923657506645689949417079472206834002740615558516086147278385469004754755935557140461852305665545790727364129944348130796323860380181422270054597557777798404158791062641346745374755466199319544221626930027129651276020613403842316060447547266320163614917299894017016049604992645352505599454843804040254705753443076423511505469381534067817509433256373098420945976719015607964141129995622970166462592530576208074361802782241703836910056166911152225038122498639348325306589256131717056132750794216760896100742483204731062050293259956328907020130829268162939158504664512088347006117126461762649969766579760064267668559614527756995895560355671398861040222502263898487542751956736405800684729487189498242651711582604172725476602084056169610576372742002330955930079994855602033498960883760806615475824879948060515624788491390301039737881010967083552576885946088251418989874593530305635480289219770942588237303321779615560496691686047797509183973597621480205944872299739293865502557014146755494801492240560361103503328025966761532529889199897587849135078939960672987867728079384105746691677664010234908119618401326095906076422167398099290290685809944525921681901676637439461701
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 83 of the certificate chain of a 3,007-digit prime (215 intermediate primes).

Certified number3,007-digit prime
Certificatedownload
Certificate chainshow step 83 of 215

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009112552827 --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":1100000009112552827},"decimal":true,"detail":2}}'