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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 #1100000009055131685 1,132 digits created 2026-08-08

Value

4565542972381672411892558529248798927184952598537521007900565603711436734349914134725359301811902613050898222827861076847174427549911134931035033340687984928599419703858217870974814263115946886902121595013698399069065290710459183216169450858836974515465926238065435536589626324601828278000633286588669709197654660264195606498614055785245798636838093635377348276255168727233493940679614715368411148495200446750654282776760444451352015414183873519823954928248515351989002237902819861795001125283167210611995832561501917680084585868858268454220033074296551304774500051025415424997685710295215908185982744804962857319762363496789833413786507831312385292675843130843576225919477733611543957603138950721036598611614399130036215598534022973682819041453140239296947077286853227438809957194845277981997759674329172877508512694273731907917983469967893320273377494849666904131309122045389374071753474826121242904073300725360971491156404067605595116133058685238738573101986367292373026762209244692221434193810957950722774567199167448014095814923800827762754782244568255358351223663816185285908273160294521793508291946542834742811899712329273357
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 39 of the certificate chain of a 1,637-digit prime (122 intermediate primes).

Certified number1,637-digit prime
Certificatedownload
Certificate chainshow step 39 of 122

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055131685 --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":1100000009055131685},"decimal":true,"detail":2}}'