factordbrpc · fdb
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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 #1100000009053591985 1,423 digits created 2026-08-07

Value

1101575972431547505716860113030042452845053117823956254589585157965676438519643244306495035446666071794062497969382923170053236666857375608929589459785850689396327662701030975128199244500524843354031114883840881948169549498508606594332378690389501165088417965064545725633973081052470730546374369233086015033243080228148516200378390214691727757748757844748958009436697677084941750494981085729125419561620534339605228029268028447282038848365742803199713561610814032418237492389420421540965493686394408533641003023345230628381513912865231872403426991715255121777678700751693351323319069142728569124648703367109247962325824619019053060031896231247119500419587595464825752675412743054510124093073350803413317309820525800883149647630755861916629013267980072071524031480835462225435221318814051737874431318824593459683446335338288693176284270463083226755174862428531594213415658130205070682524011417701087738167058918089534683376672889605726298431378644022993862366659819696629227171145350860182041832635288420686947088641776271437476245852918243833849516651180403283062893785296880363808928468748245196821090866493493710739650343595277550991229593641931860081858311655571458893928469792825192640268077976578475766410814817391470710332758251579340150834072838791927462788637806399854611354034982483608583464740231893002593056671440526533750447305203663249454459100551439501448916494007389513105257601405624810082263394278622272301
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 61 of the certificate chain of a 2,203-digit prime (166 intermediate primes).

Certified number2,203-digit prime
Certificatedownload
Certificate chainshow step 61 of 166

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053591985 --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":1100000009053591985},"decimal":true,"detail":2}}'