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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 #1100000009088757785 1,621 digits created 2026-08-16

Value

2667244547461239529529634366835036265970793246085432478748759814767970161404484613871777848077145945670688093407495667642728203512630672443950165170967735279637609055876679333392924368240412518586615388718160560612569346228856709765005162079419170444575169924856000746026716881670813440549910477284601809405479215669677516729565617758473255942175563030230703798266823261499995782850144733539818098854212100148796290740461571965967522779294858616505815499189494894843911338180102135737554388166966790517992034369862209959684176446776043285330894754316987741695477670017550674770712331862382464849776844246183153990730248451672984283110614551100757697165367543107106354843005096478036494795692607353646270878159724193457977189507949639815733460776151546103758725355493384368755569055169784719459963686702984222550444259992605058431547929968198933444566257787858856282409284510205964267325568968075744165767650855342922723197079040358618100876434739401283089337935924419685593112885559512019129249644719684105945600765507376666103302228709778094683163122543776603515997135590982702498069520218224053635061058667372920981522413535523945431650695706885253092292645334611718382593570991643855278944166519008908544032781509768706523445998280860144091476258951547814625226799131159244033586863496393107245963187530209688373375243397886848763402089680359975832475621005877477424455031060262246494517382331157041707731554282655428721079938435468567196319141583853052271408117650993241037726854435897628301256660115354268470902876501018514619535586914222840247580160164327465513168000218519902070646171829350840959672928267177448271
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 1,975-digit prime (156 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 31 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009088757785 --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":1100000009088757785},"decimal":true,"detail":2}}'