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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 #1100000009126950991 2,994 digits created 2026-09-01

Value

120108313424136271664388676891223864884845616895301858408912325623194259280827159609516913347298598881712418169333482692568568860373809421420787646106972284471259013138195968124613302351859689626492963879346896691024590454503569628029544194447921543845659681844370096446266335916029314372170004751770129152714537426616325929599315971167752127637169474406281634070489125029987300694897102868164555075174523734321071950400999893836329299577312204749638386859234436957552253464712972511767192195192281647650474625737682244640097625944640767583158753414767144489884470731315896111230120658118642202174746752577465992067774811166015408239751230897768415520206669289606606248448855911964111269767077775032933787378177673849554106405157145823932896625968783660681102680122735395974472283999543780481349551546688975948932172501413786557115990723814902917411847610379988964862331823976446671933537021313279549083719432041623929545260384604521129142511077849932534104465078250306580670190077050257053896477610774997319677891566093484516581102052049202164204711997284704759656508440137003747721141302292925234535203387870551538943958501344288632148177190981975853155084674708539279602470967086188560690031323261168096194979301241998066508957221591611754126351289674027982340060269559054931516125876390701509098472779785271255669226693110612618270365828287963915147469984409249675137176566471150422998198620961614913794652712672021929283974479251037898210347928279578892975121410834416840974264822330923257295356962298508492737821825301621310362249916761384281446585437442172256290192128462638157192756085948199550172790265091843006532301263808927672481511040203688004971791616195714578500668659361953181418013127115212512252289552025051913574180954270764560985034356280700105379421228779842764941713074604223963010315304182159007296583121837409770093951994783058338745555583233976098295279638197385453025080520269216703565214826756985914454765931502522262103080404015327281952132605541885715098612265668403197833192828814512521857150045776301831430399925624631179151420082762563877367801125970285484226993882803026547387511237828770403440047991646035787927593265851900129890984612500132312938359560582726806047780058227826249529885701391144055727383785288825081470824115325771509290962795092160527277342480753412320962942786118086201959533924711090726402789656495589158404886640082505699018397411478760744973020646706324280100666414145428967932126570610394250585428278464203278054132176621672646572727060396200518315010980135352007598704960617112761576496435550596646893265335238342086013234804317726624280784246583430729767317694446830892418001416596327927920245099643507123812301459894210423276633328370772636005779643952166770494334337330243694230118693071178270484459784871175050220625874292242017122735099341133884352986892242426732036853676374311095571845520849137484030131404883829725617396884849070519550774979083241411653620365369785723248900477805583325812974670991196854362739263554305246020763
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 15 of the certificate chain of a 3,117-digit prime (302 intermediate primes).

Certified number3,117-digit prime
Certificatedownload
Certificate chainshow step 15 of 302

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009126950991 --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":1100000009126950991},"decimal":true,"detail":2}}'