factordbrpc · fdb
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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 #1100000009058073989 920 digits created 2026-08-08

Value

42884227074701445001099989288444313354599036742754478174148899856482917065190138630586929397694386050888978922462706412710744238012918886944161707273231954583358075210102506528775557017159708036805686912165883932297131546950959282570799886683059505162585241411112146562400510303130315575960168705212994208558043946881677380978282317089250023242703964693959220428723531115025827464971664144579165119552764057624871072767436030791703920208609427929245814160842702320257673195263708535028144257023676184726885822509239847529146935006186098305484742880559500217703227761950639211952654702509459594955610435921008924641521975117971112706598362506645863734212021998217777033831957139888774532370102809986648673084759429835722507949078840936406502923370934854939272448773547149459569061114642080781534795811391816697454096521230699796702960794401615959630727031179658824220431943237388639791830009863072493884911737107583794167
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 67 of the certificate chain of a 1,680-digit prime (138 intermediate primes).

Certified number1,680-digit prime
Certificatedownload
Certificate chainshow step 67 of 138

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058073989 --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":1100000009058073989},"decimal":true,"detail":2}}'