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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 #1100000009061971396 1,788 digits created 2026-08-09

Value

116103864223846706579310316903365650221362069630662600617057712994567249042635562705655043725952340431964835173888125148941823476600672264538119047182258140105175660387776044812711477341798038077968495118450149801413416702258002561496677248068560279060820337207625251040724904826706754225079342895838450634098898987775525324698668984246232663924266219709471989842883452656811911553233658573574855097030327762906485826815591479549275184435597004347699740878413940920425701391396661290762661834958371748979804522074039714807177369779968338190258158222835083119585214326894065558902336431493726620518399050473448608527139670312510299002220566742467619754515397626562843359023319363714180369963255923123007398354601100065489045961083297619473129604312173650926361860532664662998761903415880564241122524902692671057131586783676033962560134349620143248205061008285173894552488174014252820804464143001098907393683523884939419366885618268287617715181102203151024247916500962196349326054222013597674947921765337369545772435925280689557414261478362455066237473051631958417070783612014236376962747892927984715091683088451130984345821701807917444931520506750742376429942819545410687175018041515790777919672615801102653941010909934359114362314002295686396466435329804625131789460134104057729193706276978234202607263768133379241907338686031819695308617350849725834442798867421126514037584825093425091407530820764346375277079820122520503396092764298406122847482590087450961964581133675226738638679810355322565193400648729266032140126423526258708336189426377881719423954348263177422624695930440421814183341559635744686103376181175925583090126332583660000312747833000868820773664189249501551760580360653228371724120572533432994136312156143369948948542484533861562910333969263046920852053049131709429896367
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 68 of the certificate chain of a 2,563-digit prime (200 intermediate primes).

Certified number2,563-digit prime
Certificatedownload
Certificate chainshow step 68 of 200

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009061971396 --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":1100000009061971396},"decimal":true,"detail":2}}'