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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 #1100000009041245227 974 digits created 2026-08-03

Value

27355512491609817933117077796051772821417296428970682461189597849368258341326192313009157951844524602117666766505033007610788004388750479518116877202734274050024270088070385261374024859926719749905562977736504014884933198841722203477086069220891028236185244053406814312883687071043226278216641604068383633613599143957560393219196940042928332544187527175276463275150555389202151879232400089888842779645006382677882148409933784850976495234343123543742622920131583621508354532442645363763643601529908797959190738335120351330903491985698219937827055956773901550860453944841568218897081378300575436978206851512716777834564275505125927131362174086234624927055386307126127606814000951394169721488802320273710139178801586156062194353123001781207938450564409309301870492086169351955697459278046910233869123737823624393255247242865899797288413743493139807283440563542817224571066992417267434587297021666431557322647642233372991691393713582732913729544836036447215857256542195968860423
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 1,301-digit prime (110 intermediate primes).

Certified number1,301-digit prime
Certificatedownload
Certificate chainshow step 30 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041245227 --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":1100000009041245227},"decimal":true,"detail":2}}'