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 #1100000009046872956 635 digits created 2026-08-05

Value

27447953527234233164425385456654948482215543393117950250165778102363263472338376851300672562178314859857584231884099452377267836004073202499225809036293231473027148475301740150179212155074312081168783617188499777324204831774657397629936013296355526266838739468671695251969185244771030007597017318859298110042731042034431205384242419957869596500388804363510756679420070185242965020311795721710422551502589674953975506593428125219685361473883455313668325419175948338985916561358431191095048113054591393455765145661278886072363450557898340291612235818047943370729230875728692390521336414872172104192357359548413542077424698651866897362527
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 1,428-digit prime (123 intermediate primes).

Certified number1,428-digit prime
Certificatedownload
Certificate chainshow step 71 of 123

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009046872956 --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":1100000009046872956},"decimal":true,"detail":2}}'