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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 #1100000009017777575 1,233 digits created 2026-07-29

Value

408949243652611336080547928357390737148868511614159536122225857533892065470770335414238740364360419566066823922751382893465064366883575514073873803227052277563451989286771170635164286603447023276285360226080597019580965910957861493974263518418324557728062065789382114347540659984690301833719101871600129393829920766608650090542547778766429906523014194456424324872590248705282027096704032738682104504051505097751838786202647465831138935303121558636073635901206802968623123634148389244393903675276041036583261157077084600479478985396444281912897226641987427323184978471191484559141318848570220992141154350655172320416402419578809867656822843580222610697219892426349781989719639693213984085576360858887994018957277302831193522755462277879852193237323212540068138933191367777179194768391140610374060994499814507502319465220566273844589642976237939042765631872357490247267401633764988644328812728606760483033465061813490064272575591244591579932747700551091039358136700151683754833351892510387410995851711935552852463443251531775741288784817603854790831709148679267795321070994997621685461254037563347739619516876020057242566941267755411149471247209373051508451412924724877019031021863414924378210327896859060884272663967302335761479000333
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 110 of the certificate chain of a 2,710-digit prime (203 intermediate primes).

Certified number2,710-digit prime
Certificatedownload
Certificate chainshow step 110 of 203

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009017777575 --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":1100000009017777575},"decimal":true,"detail":2}}'