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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 #1100000009057487255 1,077 digits created 2026-08-08

Value

372790152080897075398707748163722252147634393856601496159350186356083843148648652779884897139040332795631055700502786074504635807297145611445786597145927968859966675728078068208009794803389061490895262562752168868510679343453442773860669194724297627069540356414751943275314143931530229863757363115607853131486915848023153307490360348301530654275398535371285418223436031539610082982960430026529305469684490546580461964932699091039622614806840244225674452419771121857531444216378977084133475782724587980298904245177825644089854635929296148201025477387061076357956209090561782556791713828217573105903648251337488945115028533771847440729216962869459829368531705110168060697617563295016636418716374784728129048257569274900739870021229597844213799267819144110911518477502554212206960438076366260218155232909534545379842681328620031301316587347849253280441686602357104365459658221064855402411114920781327509213368550638604396335410067955065868266359543188549795840930543217624490118562326973334846322105303519798612181564833555057148873632728841422809507722089237256898679197380410769
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 2,354-digit prime (176 intermediate primes).

Certified number2,354-digit prime
Certificatedownload
Certificate chainshow step 99 of 176

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057487255 --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":1100000009057487255},"decimal":true,"detail":2}}'