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 #1100000009065129956 904 digits created 2026-08-09

Value

8429900067991386954672047654064234651644337058896200879925829552631460882270631048716868080450088784329603236082018987943273128970041270637193388174204695492375133818690396160239425813266020194879216852224754153012010264682143363346521776895077276813814040563606520608996759336348241996357737978530282142846639735730101605527257360952169837499123775271182784461665442299418796683423321689698982463843877368716173882962526022661979507645200134430694555304368279008635811092150391879026648631080686492315511544093440985273390485189506956415713018539036166420987821691945814544343116109964521960812217545269337154447546484807319705027809692231972432396380351720764467583957502588560138616494475175741707073437763784067480028761650891633449729647676604819791972379207788699553537040216139290090465794890689445580366911789216544331403787041406391458358180246725772513798021911200146583045292412451464104733373
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 123 of the certificate chain of a 2,485-digit prime (189 intermediate primes).

Certified number2,485-digit prime
Certificatedownload
Certificate chainshow step 123 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009065129956 --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":1100000009065129956},"decimal":true,"detail":2}}'