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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 #1100000009080279643 1,033 digits created 2026-08-13

Value

2200109023562578181106292427804589682822243880202969822503566981509696136283289454862621969886133692915486547292207108977542303923230222381927504584370094341191172682993202006266821673180743761385268798004916706009006939817942669237915493562094222953362592580288643056812696990564677732431667005759871108159634072618941979007870605262383094612480574387926186332492410824297560474144426733646212812194089333092729020277173412103154026585289219196603709400202776648856061983267543111015275767678414566301764049754541345813643835913640143209593209158733507226937407434846682794807796271825335693114285260663045965738484499128057136093693738955198702979083860125158673675304553517987514668573867833303418353570894487661741600954964050932234429773092674497439836527575185493538993491294987476026672629550088377267670375817415911294238802849214146322694829820316578134618525345188938412426157821730702857644849581757619332016892989346782984326059386550245914076979012186875884799096114944404923019783700824572971851302153873203800936477259
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 1,868-digit prime (143 intermediate primes).

Certified number1,868-digit prime
Certificatedownload
Certificate chainshow step 71 of 143

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080279643 --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":1100000009080279643},"decimal":true,"detail":2}}'