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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 #1100000009042190383 1,175 digits created 2026-08-03

Value

20844574699268042189814364039288054861776922217856965797990222766248560822677984092775384833235885800197183399466736477857697201212680758775667588382387027988454952163932758138927310702270305162534170689183361289642749155485566682237945388152654847137453061911245577727061141870554622579823084179727494779402206564741444043059212252504937971773655834946028524959409165282323571257144459647922050197001660718951854211582615878920034947314343876217025289703963558276122130595219587635941967775977465057496273689519206632412491333258013242868542511561947894878961450470855210475277706377837023303378383967767809613494368155720353297117138336206970065353318173001136093822725855311190221799749232078020265488575371456010449913449135303137934008097821644459314546620656902173009212678166474527125564892513392882030592903067837833469492839530454421594864379675595568464761293595259913061928525814646760364328144606492242652006619127156666807741747983206901574192525790381720242863015205882818262439840629166471432603456883584660308574836190813774488695770908152953754342782704825552095565775716430690559319869521913247457746524978198447195626820284274695608943555232501779919920063
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 1,311-digit prime (110 intermediate primes).

Certified number1,311-digit prime
Certificatedownload
Certificate chainshow step 13 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042190383 --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":1100000009042190383},"decimal":true,"detail":2}}'