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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 #1100000009127305667 1,232 digits created 2026-09-01

Value

18003365950290615438526034929094293341489175838107973722960186320566130070835345054945420063560359026724969998861840421764222574415626994096022209411498735451026168541178609648979623517741312599874966090430885004042669883179936548734145163743560479704818376634060020559747486926780013286794678312460359421767731057111371363173199712618233629891199039252565590970349601400788098219129661998509249066454398745279646125562421160359336622681083682766259527228897184579511452476099099374833405974933858465942115583511627137527524939789384959522656815366777112486145621768768519214764022887797588120496812577076929483279699597238513686831824985564129977454778582957873186900526860906896139218715393461218316739487676775341044724510493779143149355569628768320159121386102916122746691875274622687042690319936205846115734057719746007581664500902320057889376297022564184590276035497656560744576690753141154561656911013492611683744293074544588038404926840263404426355192561952842831573403138337727097072551242585499608251512674041363231902932816957925417754178384716708299374827616132597062774055952461374719943401724240633844012357452318601495660772095921786863341516866888935726665493302366415727600513876366748460726625937446375791436705887
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 186 of the certificate chain of a 3,105-digit prime (328 intermediate primes).

Certified number3,105-digit prime
Certificatedownload
Certificate chainshow step 186 of 328

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009127305667 --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":1100000009127305667},"decimal":true,"detail":2}}'