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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 #1100000008798801509 2,872 digits created 2026-05-10

Value

1202570383915056243000856490770687881796554430471751307721043285632516722059433753903810897263977404213963952287824977818914992169693967012519362072473459875511675213547043124032692955508349920710810441540029217722643443799760428957594069840200193274479155431777928034977550043938147320682323354125040373873332827516687943017889796334834659014569651029412766529072628990652744242164198536229204164177875132182986146819662899838225001664948138899864663828521873334806127032802513791543278607094010969979870825513496125490969858516237562347492767030065175150426471541597763636533608264276214859659944287130313449760781880079962625878147726188827825686966654653181559892804000277358562091967058858317646815950310128230792803832278357628375469139308297868974421925824637356910914113559385671173932428254961327893068505184754875698696131867060553662086627878907893608790462350089354111856051899735930841490257813451929221734291637306247190564890171150604202217661208820391552891146432902260089506450422192229170829646692530694063867069533698708441571862608101906729854903829318055893598795992865728149048018219230288823232824088298511807027266440981174133446459360286308199221562823583148718368916124165423104425338497016854439103201137436081080325638487126160277797059809327521259014397541433971266879315365268866841862138271121243321100333159520568374270828649786722439816430995296758907492982791556203139758907396048032820747662259708811300075318904929387179893413518695986815620798533252319586843860911743514900945150426810870135681973144597640892192023451316654489053482857860394619985015975870120442386922804401636873588705452705924767467198497069750510741145115165062431283941968106553052121017322782840680152243739326547342286535741964588414669015455481811639869899217055762983062926130555798338152818153025595226774955505352754885982987179551319911712131523077689775064366647750860632418888455503183168501708631330935815152149363203740207383751292386699144249066461792326877345810830160322426852162684229099628347724682265739763257396070255550143608432903934121743683420697691733479090793630001963888296682438531647491145055378272109298259374612989506635530465388954486214421280142647013374535800275533340626978955736587107082895657165208516172598812245290542052272059897070002197050609885102210818742838895214489921524485682870978778809628054698377986041609529779758018424880137477121427642870664364619761463443811891645946210304233364054706192420081836165120716001655681210693916720337764469330218516533026789371739641440056285775783918286276897125712373883832121680398434498077069120826100610792034350065265386552334725595960247268344484014144102737450844122834084227458018886476406641764411619647961293352594298697661895335420915815051492716330339026232848828695902315356992184075982451130283860018999386513671567389807639348659541513222014657632812188538018781613
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 3,841-digit prime (253 intermediate primes).

Certified number3,841-digit prime
Certificatedownload
Certificate chainshow step 72 of 253

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008798801509 --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":1100000008798801509},"decimal":true,"detail":2}}'