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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 #1100000009115726489 2,351 digits created 2026-08-28

Value

12683693039293309032398854891959125127748468561509515893987396191404817839753793725500756170320058131960289017246098665020214756193306429392955211152763169779828929522120618633508624829497933762881982572859662841244072293476306159010989030273701139856929411818611980611799462819775254871475799804235821856160376938622563382177804386018824623614676604385227923714179313355748544737335966594360007906571579354403564955065015449028460062143635116871545598799693856120781003652725911033597288776795239261461586122910419453915733900766281775624462007968727884577908520607572407232665078211370204706468928980693233214389324637862449781295249810432149189290923416612271738747918502102702651337093469921196650400489136870334773586578092962773375739073469848791286929600780149066098922901111870575986436970629814242253030558753214453718007953722703318979464861419672852912975245156408062838560161689342891687526030457244650100077732842238345337206980965318260104124526450820296749541502996958949076313235893801420941962804738193868018760028409424702415443905736029589939037117603614604907911034073642672260432006013813044146678868171107116764182087460720720000954773971142763673867954243191892025045202212054242011977008662543533692482666026336410275350331060922024027950589302210687647773483278832160607631943374883118160433334558457107447626074420455052110225233163740466747870357409022353040031777740377063657767379692538810576350567938413998933738602705151998060787273273282793521152065167961068301884023316904952438346748259954602351917067254960310181363502539193648428174070821008453411823923130966937392822145079302156299143352235666023445879248731457801435370688359568124585740061450537419519799972050809575972242265650632352963956849159606849146249539705425841703796212509749030562196555096066391966436482859731988435343411654309718574048547671669467416586697073213054771837620908232185518915353409465735690677664328964208323611327363750231864903630723584696559091747720082281067977261573824266222126021298465244749739799167773282008606102358521421190429056298113730044206945354957825652193522077178144304405878365730512457277124238959972671816161529167973927715043776851596101188023810359533602714855425961896890323018841246180331880965733968109141583958651094826416826078970542667838542122635195408566052057005600567561164996046330979985050074743579
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 3,052-digit prime (309 intermediate primes).

Certified number3,052-digit prime
Certificatedownload
Certificate chainshow step 63 of 309

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009115726489 --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":1100000009115726489},"decimal":true,"detail":2}}'