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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 #1100000009046872591 1,141 digits created 2026-08-05

Value

2766387469602918071471340348806186711861719536940979980785980125849923279054976379997962240292973395025337451730499006995444803244517437969152827786718618265408818734575169031024635167638578330225229387641093723363644122853761664465601237077734939203914134460697712862520276536927115467719750032806195879483169458259787218188958996470985995879294925248293151965511936908273606848999528096182231648229094286094373820181650643466264638128944722022667750021366193415307822969942405796304066390376874394956995780109573045797076778200751586497919622612794189309255672393033977547791244063012390648238236503079903850282421231201722621578806860090679243331735302502780425440549454018845842464817922252130640378868924675306922570332387541111790792408991510508790517344759818017583819630518765998644613873670526058604913848415924403215878169523135210532900455333153820407197076001016390664825957500079331301852312114281957016498996530731986895237369609725720101599387755103854315925210946764005913775335347051480732118062743183027179485473133946256890493000526723360429128393121529642441151781940692175875878590680395285514197658556128592288215022711
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 1,428-digit prime (123 intermediate primes).

Certified number1,428-digit prime
Certificatedownload
Certificate chainshow step 25 of 123

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009046872591 --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":1100000009046872591},"decimal":true,"detail":2}}'