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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 #1100000009122750802 1,855 digits created 2026-08-30

Value

3761604423799920357844035186117110584653143370647682118692038146069190728438722685790590639174186121771543016358543114152400413123951708213060406217299115177581119105282611193134724964545232052491451410049795820371863706250537932372724418051674610975218861190671328776392424722441971394903843300277661049528850745274551727233604904790833894242153528104880620957499381893321706703334259210226327886567993873000736339848806006110924682911117418747574123054845521738829217703111563870007675043926749735604843340989268990272971809898404075068885284110162568655054717052161634979315810530382877092885675032865881207970198518366844045200460217478141564118562397490323113603119026730488525446565697901669616892107846495571199586615220571865721981530939108503988969327516300673380906759492133891453857592390969408091655453973763173117866470457459389139207799535190939954621590288012042655508109802714515574028099641225641337571009945571644961360806897758989862898089413201728740702073701965531922920773710786019714589172059578535066455490160728059701699287797276104515705694361702603684613891280058127598762297267934178945797086831844170770203325979210082868474419682641804240034540568747617832179847945259309041143713722443394073645119313174447191664584774391290473020850837332956120249019620222569193246965218353841152805226979326898891154254337134420591290771106230500253839532321796128234037400414902363794520897786182207348268555735455669818329829113855494640234616358231771423354460142619849962132892186205087397052291806499227730806932656646958597340992760914745012348732225733332087816516168162700523972072390261918603332293103690606536595626406360971127159916451019247156447042425276077496681086849044219280546629922330373804449094271679490917600204908578286647960306244047279682758016847492292722326734314155533947336823394980725762713089120752063945531
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 38 of the certificate chain of a 2,256-digit prime (240 intermediate primes).

Certified number2,256-digit prime
Certificatedownload
Certificate chainshow step 38 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122750802 --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":1100000009122750802},"decimal":true,"detail":2}}'