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 #1100000008676371559 515 digits created 2026-03-10

Value

28807811343532856215255713021401076653922701657173025478105019542196773124719561176835799089142798701702037359520154210637119526053107005558100155683349060892506178315433924573795519608149511222410433411040660517711066447875261660443643298312451145756378242378413720121080113398758496373416986845798296199591904530747211035928139660634977332970729214931331777699502267860402203671507984024021996079841021225145505243171016715484131828230026255407580865675336761648685259667115895715472875337865329648660490907747877
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 181 of the certificate chain of a 2,921-digit prime (212 intermediate primes).

Certified number2,921-digit prime
Certificatedownload
Certificate chainshow step 181 of 212

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676371559 --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":1100000008676371559},"decimal":true,"detail":2}}'