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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 #1100000009048725414 1,281 digits created 2026-08-05

Value

259205360284078872138394291861375231816357710129884596652845160680081789973502212747263461926377448036274711124466061522153744430927922036821819778685183656616767505765071431193752083675316000779944113633334446674739902628872716507010414209320552457096942265970367039359589594094479661366716638510990649298841047054591736950569498856710671449290133407912251363657343034329624405955317061661578636676444768493541485183584509558305676101848966522175824441434055158990909970129433360753515118427367024287180048855294201156345230821505967065849800784758283438569682484712854057966052181868218004264789902189160854658944835195267291546480986117391291714422522882947612100168012886569296213995946219067797560035122655326045440071827628145582303534572551469709382984003897020647892721337945669404581330725481461720271768224585871739609596173458370292571396286320397928531984863860318782185817575122631581556245975390708166219671721842478721562859404067109452732986018040302600955862418402560596606124935745671264526435398572868451190828058428712747999608144581136916534604443540880443298071682157789333235682946597756692741373326676004449011146669184741361631828831941829180737628615864168086197509261771591505013994562824519840889354418104092222395317826569709047460623660735294154816621
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 1,502-digit prime (119 intermediate primes).

Certified number1,502-digit prime
Certificatedownload
Certificate chainshow step 20 of 119

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009048725414 --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":1100000009048725414},"decimal":true,"detail":2}}'