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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 #1100000009042557568 1,074 digits created 2026-08-03

Value

336633664305717959455114128656494969447184131077702846696045583297011667807225742215013744617079603046167020713244003861747578694432793425390009247784224549821831839408949286891509802015634927670430168890583340733895713822519386351946516097361452560169880390977397541643517242815888066375853296558063563908954138370333487506078757256700516612115412069711052510707464270126422037771370848480732157964449902343964755858191348968360051640147096210954343684620126532267051371152034898482574288488365994307369325637535693307060924480805558461668739852360623735894088191223085812057135322806399246130971229292770340231882410055686846294936152990385119780732971215203552734392285617032592946520280606607884050329554946200073184159555071636748819300600540835374221266260820430152768194820390588298886611631782578830296080808204036310503080367467825132959374376467957804593564400788713780075512078134940861851820502046087834455246196525187242335060321215455277104610909752544290574499409669365112812466909867215500133490857194470577095082795304187044817114051830586082131188104313501
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 18 of the certificate chain of a 1,329-digit prime (77 intermediate primes).

Certified number1,329-digit prime
Certificatedownload
Certificate chainshow step 18 of 77

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042557568 --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":1100000009042557568},"decimal":true,"detail":2}}'