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 #1100000009053896520 717 digits created 2026-08-07

Value

131087567329420315917885335164238548798948954050740955721339476931904541714791857153500424808725028001562471864185225340863936763171235668015451887168384572475680702757193113595301833795549121048438558877873257137455997618079031835566570112909568838295384814276378314198450973395103079205125104340768380011043491244996529597818940343597683557554442649361428411076227231653885586163002112447793126835312983832612688969830422042569043527550572419861106154078385754462785725789550420675070898918194837251364627034720376126498257641101356122615108661809642760515781599924328099168729449387338638428030784824617043217303600022748311060490390643528523348000938261456610389509757691147380007122301921239335423665370918264969
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 78 of the certificate chain of a 1,613-digit prime (135 intermediate primes).

Certified number1,613-digit prime
Certificatedownload
Certificate chainshow step 78 of 135

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053896520 --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":1100000009053896520},"decimal":true,"detail":2}}'