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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 #1100000009127304438 2,295 digits created 2026-09-01

Value

124117086303638226031705954880212724071550249447672430811877601835266135834573718362447509168347774640961416400225461459464349778591994245827098538365608493794617567231063828348829433278869577255713697257016504567414676911796226223831105818386777582153949758667257304433908606320411464244111255169715872474289395893163590183969399219437041563831466856591800940078882332241458223483803872432086819803022209764309587350030736763867433368367520602122290254379535731448798872272426917579039466726500279954432719219815634692764757769931092227826006898699423801763468728259891309021732903597112366187070223674804958587560092617798513629613618799019953168783955383146238410862172899878850168878892581773215372977383708243594554458212003662732942257104612476893770142720378567035273312661428186960426130454037775107302468424172476897384857439385467465319530776076967657028889988602110893368573696114051537872296086531983277284891286914436940007641043557315206478742722496318848361792314170560626766191368444557394760387446889762238176953314082617806744650755030060611842081273672507533295263450139419851660631850699058743077274554232395003022411972757877767335971759133165337969521516834154849890503488043847906815726334579604980913483130310803086903445937184072884007114327974558309214749446822614479678001472358170511872688934269606522611182824201246683828724961238504687463823990721588666951872616571058478733107356071323744884195422421185139415504471872520928383577756954734219440324071602021824285839172848163533736386216216754006258814292436687547893552391044354207861228183905506233482961675712338937902921222195157920065852728423756193946253861408740787704672776456736634077701033106770747763615042490911795406928593102348263148420924032573228764705069848799408741372773869465415079018868148157699283305878550766299574814527052598462760189823396512450331498240628193409706095948173164618264690991493964858855840135201331752475638214031932834970767120028140663021605072408390903976750138086055679692796340435101345587277095579480014893271580789437474769244310208850747578162883759585677034990684399754115691713781807093054171791225743622225373766640389358121423819152992044616053634767273233159746206962796268758577586045970765900198538546636661405199253769168443151047318745387513241667857197951
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 84 of the certificate chain of a 3,105-digit prime (328 intermediate primes).

Certified number3,105-digit prime
Certificatedownload
Certificate chainshow step 84 of 328

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009127304438 --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":1100000009127304438},"decimal":true,"detail":2}}'