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 #1100000009018987727 651 digits created 2026-07-29

Value

915660779472886028039029291726482030810847174398084959694599666401800236929672414466805020015828158748647174457602704626445014501511089873148831388029796454075613799970053333128968785941121471558164202868888105976494709772161871426745578414150639053733291204933459350622602028543865929444383383327934661613917287936122438465865115249797959072478093232612309842834765397149987314401028083338095251554926575783296683758163608869968211556742825616608367913131948019576482518582096017639780863539482799083532768215972604419638682975562208724329509471380145149871158476639011329952806546742247552457774742569008099170747184128536178151521497936243539277001
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 38 of the certificate chain of a 1,061-digit prime (95 intermediate primes).

Certified number1,061-digit prime
Certificatedownload
Certificate chainshow step 38 of 95

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018987727 --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":1100000009018987727},"decimal":true,"detail":2}}'