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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 #1100000009080279596 1,291 digits created 2026-08-13

Value

1666888257964508732315638438429553116216358473281806725446196057441175441541839651897984026864835578373646695598661964412836915361915307370271228567779398677251146524673681604338708366479430339227694018540290436161300695262724921129406114798921257472570788777710119628738148492366645501698998786866640813489270210475341221379069861076439552512590337900142671925701995179207829471232881605076589669046935771886798438314258937988248529638985498315690988808308588790080144569423022131366661269871465492114927504982420701748385199011040134074454471831604545798645099846522032301068601740464344549792637517644195551445969150861587398348340630092782716794376628017866769854711274171681484319792004797046495354253648725562720885049124941145028487440289534278226582593380022234502772786359294810254503704484693311544268432732350513548906618975459888990553631917267589521947705185024079453283126868413109584009522018989283884466276033008788010504596616686919353088783926081083001522984069969665317337798772989214127100497861547074689440392169697327544544771083152678835730510158244463556344908871050963694109721261320822275680490393079469607255581840337884568669832030476836152691025451288880542608667509029883769476244014900650153510720653384900937906393330733792054630789666720123683849588039090641
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 49 of the certificate chain of a 1,868-digit prime (143 intermediate primes).

Certified number1,868-digit prime
Certificatedownload
Certificate chainshow step 49 of 143

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080279596 --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":1100000009080279596},"decimal":true,"detail":2}}'