factordbrpc · fdb
Sign in
>
?

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 #1100000009040166560 1,049 digits created 2026-08-02

Value

21189526273102453830955944080653823740068812726269594332179630179494664872350747789904048180855215788381454135083920514825720203850818261359911077646391566667082337557019456012535780565428566980851299202075124487416224344982071340595158415559912187921931200072350425534689476439367677586277597005372735094111183414941203041644095571114529145731207211104216797548206787343837973129459914804992147377531439115941499931772375559017429047336890674557160579940303793189939969325369471446203471413668706881311191517223577942724702422554119876428639835857923322015831852311599559710267980292139279137711053860200631413648685901472094461794291995470189817520161940146456977590254586866160875865598209472045933107125821262731934042103660753045708114549072674076127532210600878915562278715202634657992104985608976597668075524890710028415854546404614501033213508137408197255014929376157642792160919280501291293767952417807240810618299880453413278364050010486830097103491644650999061606971497843573683633065380361235292798340121508276537385672811717928268731877
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 18 of the certificate chain of a 1,258-digit prime (99 intermediate primes).

Certified number1,258-digit prime
Certificatedownload
Certificate chainshow step 18 of 99

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040166560 --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":1100000009040166560},"decimal":true,"detail":2}}'