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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 #1100000009048725416 1,273 digits created 2026-08-05

Value

1298401239703489720483408287378336418022883719021746812530172230565332996932321076581905703868780233345301442181705680056114541060458513085328763015502889036380227506074816415740882399656127149863762425063883559794838726517094453846579464777019088172789818983419573908387171927262660624824624977235823486336608444599936372394500212602347774715984777040726715391792301424955996058007706321165661675514704603364063423262579757897986744788910104074604514466956577967346555189985300522244625228076427607659130803141407823925651950856138490031509226105940394630124305946821460567628706229571356343523604868112315990038346902490797478713627690089029344529630062013833163176879277445905165624210764874872107283051962779946258974237079136093701750950112310587877019138966245218773461751944290287018839148721188058201283179784692971854677502942965247841329382412148809179167148420762432330588745394120538110518669486381342726999706501940191146816601597228956813912169983376435681510937815135958601097966861820930986960917316010236770439508291080356947046497933915602629330940616144237068954679173748588226752655484102699811483414381102707700903492650346016146716693220526681059635655649579911940397859896266234621590172552881797686342747681917614490533744668884640640822907073806383
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,502-digit prime (119 intermediate primes).

Certified number1,502-digit prime
Certificatedownload
Certificate chainshow step 21 of 119

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009048725416 --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":1100000009048725416},"decimal":true,"detail":2}}'