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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 #1100000009040618718 1,232 digits created 2026-08-03

Value

12237548785816865151202159534319043873087340292479474990515236180177243617460950305103537070842779352906050791790589523568584416258257605527807564029286719522476805513674077569643272137365812499005679505186629024986667367320175794712873202889391040482174734571659818482813561228021522805126921692986274407705272244484599792329955575186366213991355800846235430933815080910348070102405141284483690277700311755248101716344127008794852010734807561938804925801379236998435848271207418990485084311971917314761672251208123654249471303805950916668413010496971795281348757808853210584392309410071331556323838106358342845291172153869300156931890796270078940680637538391361018379917865554047516256632028613539267985690324115509626221358870186001412091816666007127939987059766682648129888851816231809116702610250516805979440667784330801134965526234359939969911741742549852772123574266896786029692635092561447603229204696967917029761583235147286350745678446200649794745092503917266090005286384492606233272754743143129099147926704660000320678109224855873916305066485975569184697109672426776782795297002878721716756835979677662643530430262799266182178179295585319750771188956667871717967061627141595696995100177359135689112984712607765868273541083
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 1,275-digit prime (112 intermediate primes).

Certified number1,275-digit prime
Certificatedownload
Certificate chainshow step 4 of 112

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040618718 --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":1100000009040618718},"decimal":true,"detail":2}}'