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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 #1100000009057963124 2,268 digits created 2026-08-08

Value

131524935059302151574386541284342397077280794560394688634507441607244595042562402751538120523457668895503260564056781308405985205749575281178308923294869440910428129540578854844418490839414485745397797468553191756895131604416970641062321825480060200591119337068566631314308593400700128763816838329872100383528162954394593167885087483138291826892439194473062654288339935884671476278523349149076405521531338612408788817082421264682703156150225744538160909220782881770448668916420317588084583470295381684132098254890186197063118693002526990095802542628341877560503150874186873105180575856368241465813635394321185687200461545258162907825287961127011249688297020070553209322433057658709563876842653065859967016013781098458095696590346620562076529293205925313459160723835241574940256722502626590551364116767541255625728348632382935643940290821407611314955951126349376442902355249339281449884664297263091116251940559899751564647038145441846630666543715937758784132349575491816772286886803292264393851948631262271882138902748145410988826860520561067500197840989401972810186131139059296908291702964240469247203931980978019183379673909056290032719786122935629811165139838320957113443673153811416644993555721156124961758377393920465744983929675840167141119855276497521016094972836294393219781976649726817598719020688298702684279177249816785607065064568848499924485472455483326741525003549463045354912457825721017995985787529199743482111075120684204692825652655887381302931655454324580790273245192082492487539764430323371990499470292676464535081897130031664085436800969384779027406154055732323141320681274032457380181298489930997468958291185718305777371996606107354991914104025017771655140192830633586882183009708586983523537904759441605750857170781634940746546260044348696007402303791370398587225590793738447314085570268884821219804430611718300008668499844833033974346521642320478261765927381906685845675639425464211121021008518474262523609410071627638414910680933965151201123758541437856777074173547792347736862356468962464133746041919508608884930571940819489846903520783739102317580258586524364564213241614815599013496507011605947250713944335030832783152520579983475552986599509372461518855862744733295094512112289342408872889230262001943423495875588784739253215658695687555771
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 2,600-digit prime (197 intermediate primes).

Certified number2,600-digit prime
Certificatedownload
Certificate chainshow step 30 of 197

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057963124 --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":1100000009057963124},"decimal":true,"detail":2}}'