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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 #1100000009120962256 2,516 digits created 2026-08-30

Value

30457799176474884057371713078214720207591689272925684993983263321236233563514718163891294826783303453545378138899067469417546962987058378215441558761064679912159524660742240948210609293605367336715560443188181649774802094136977938049062588052975961334463162147719705262092199030953279794560861517362482192890284413464041073490952146358452524868971669818285876528127851071343365914723122383664529913322626948754750818405632935240237992177293871272521104777253927968286375824733231332607801956879459503176896271442911165312070372684695046522892130962777090513138344704396616449948298723359409883108832680752465163461343679931926347445148217284782214033633497786355038625313026446844819027342145843871408915724914835576625755748631178171706837416958012958252975125161057501604268518177613347505516850002235088141113448216690228885483570994630914177432213514490102001965392177477398926488517756984443439806102216616080489710069727279317883657042130620384040452873334139806394215210102790882707770400493352365100267749440576004217199772830548318870088871222977741008331508038435301679250347839338291307185753507842743029050785789744903261512372359325522326333470310403126107609652466720408313345663335227160847688034526066511949118798120192880388018487682258689432831298375591787830703500540712176757943207229104257887268134848212385550515200306541459998315102817847365194279046407648874384037231662271425242325816886413023580977206739727131954693434470441191377652129405382240057082525824078894023104377253542856047844619017322583828395751965725359394071856979606779104619022561810720939046425902941663408017891632584124263921741225867861765833823238394447676548677614174722636465636832203752098318235710302187027111093992696894994080165252903637200137990962624573041427701106746481739813193334552571733569209154503030632459415938642807912276041105154585627597859845961690003365555728580626051386725463729731867720070739045762409301995502106982614782830323171478569242403795641402322882214663310348362046638871962881466367675577849713085668274919826503890955311876655197696355131046249224081819004434628612651390653913480916574832990798228174386288720849823032364301098280335609362947517656590600283303499634504926512966714553642414145589491815345723735808408851396561450839270227179994687308776258133394145555343096861007200328990696700645293915911738918005492230638160498780468943809206140346144262407306203372301202104757469726631473611693608290665981320127799632466138680023405898145669790147637325369535613860074931
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 41 of the certificate chain of a 3,046-digit prime (217 intermediate primes).

Certified number3,046-digit prime
Certificatedownload
Certificate chainshow step 41 of 217

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009120962256 --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":1100000009120962256},"decimal":true,"detail":2}}'