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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 #1100000009077839020 1,278 digits created 2026-08-12

Value

240333220491943350413280744123141024141349913219095081848205866375279958721438894292846112130564345333774959656166167785492421255277745003637482287325375887274752509538721802871414517119896608367938246196917970200357936021066108394757494156995091958753527037655312742174446766173553819822198388144455096733852317094398785169523238312557087644422001941924482367065040234697552199300505975560585120811219230146581093112440144663720124275716294428184388508681748356381478381289033453402875274137515354130984148354382745940480597524855198269916499075543198479927688041698397418361792765084898564510424200455680531836835582817229339396872384495868754716178841874889331575044055400063844943016561425193381667127121223393830899760671267558329376846130358041512784157871633367313740613312944860834671897971349971961933894306900299990573990751135821191762986147277983590792135243807115058244745593558659616910692330663440093933101748099913332886271864398548057310733454471682077306418125236751558617185345611262704068933884061122928711998069904294718453064813718955665955052390979923944302039922009642151883443203332665422707609500274156751425454063632393608630669909528133570757316016076839901291435020202361866424687231830911236676197896019116023927965972821560500220755915999604402753
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 59 of the certificate chain of a 2,023-digit prime (152 intermediate primes).

Certified number2,023-digit prime
Certificatedownload
Certificate chainshow step 59 of 152

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009077839020 --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":1100000009077839020},"decimal":true,"detail":2}}'