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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 #1100000009061156912 2,199 digits created 2026-08-09

Value

103488842739524290770165602911283067193270791673154018524192430880477691802884727541382017131664843145552751889802380973195892016895361284946237920167097858266070736995165987246374336788173761108376413559247507167491104822268331819076584282799578346050971771140199303022357336423393279104154843756335325228260791097197083387585815515640126403472920385149195928502434964221819603751635019324469010159238844002662803554045775813530546756472009897861300172572190343109513901373731485932062056861282686561372741963230653850805856851243622786262866493912665622738701876428355744182325934180152105814139452662035943817996285507508799695337434364083392104535439419930192471627222548196223676700340394233189502635162544306896569034518234413698930130501454784321072356896585341190723648555357451325642316969281102312380510958499732208936050150958963385347080792658321276377467995766263597199108828001680377766408186589196287024942382170077560496989904907663365663685550974183201656092596786627131868743967228134070092313959778907763623941788676312873643134211690404764502953203701323493162524827928466810283165653211681725788950021100258867455318149639222205657249365666351980596765907127510825730691246484037827922775351292208225237814458716948734892905715663821987307501968474567531992935766235680795401573553235782584310099899489858628025611417312678596278134112771914810953823841551978184838761963636730682271433248387029869573757113203299305813663604720206387911061701154051498053581879520802421685085843414336272074275304536396338137976951286020978983961075024637290813742385336161869070649892473146397127222049282369089377864527083502216233777189884767060041878205622547019279747636536011851584183944511180628806580771041858478437597932576795971587980413773790561875488217099671460423741294004619166595745876613515076336639081855687663190294588037879882380147268339714578559350215587070440236449613294639292643017641049490277041289537945349313117905879892324225383438846812075505211137482274913940858931614130886526477066145868505168761072406749648265450663312119337189931933172735848844098017931343493249994033222255805240182600063930065778620189110628512927719497919785519158246140521311335377484201
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 17 of the certificate chain of a 2,371-digit prime (183 intermediate primes).

Certified number2,371-digit prime
Certificatedownload
Certificate chainshow step 17 of 183

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009061156912 --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":1100000009061156912},"decimal":true,"detail":2}}'