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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 #1100000009019783219 981 digits created 2026-07-30

Value

553328689271666163943562606720633040445067916667118399770868389263470290254926340617133830530047201830414253596218415663758458531543454957436891472597391330167556002793084570135863103321926471380282713585796722006803191120992848132807065565398217181287014107752293618073434780057218844735930338569026927753580195533024970039370545428916293347712404218954165687996735934933353648751233017613664312684617333568300012401952340150357115769017164158665828031742641097400033097982144734421599787245402074050629020357461487749771300752860004032416463053567075829008579259059317331758502687817237381786826541367059457251102044571755876787703659286394993907392906173671156499869348321967427338754128519163132852105204965852828582324618483313211336373809472285232059637609298888865373221000257269979528051831654499499064162160760807693129775130987043089171237665993996207936945976739830432632842796745389993942642340682276109864114992349622869996641975513369306334303209749430975846348076413
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 1,119-digit prime (101 intermediate primes).

Certified number1,119-digit prime
Certificatedownload
Certificate chainshow step 14 of 101

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009019783219 --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":1100000009019783219},"decimal":true,"detail":2}}'