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 #1100000009079887771 1,642 digits created 2026-08-12

Value

8708198558568091358359756779455535866571511880675684574888814799989465296691325341346106729022044406376728494405259646469960300474254737788223439378537419744112753466034124059636853861706419527589467581664382387813339685626069315326990117638550883510341879372857938931098206229087596479075218835442205638415083629129805452704722746717671502677787684468299868892690928344922927689498302930602340267781424747234905433952683186062860299921250865400605712095665900607255807495195553892758902047823310611285364829539658721616531702656151192605565596433689416035364055115112419611324622205575279483222981496196932328892973158192942698815021588629875918838909978259104430775063804706486283999245005390687226053313129001130655724749344317103862757256264841097749980125023180120156500954742663891884769744437274327130735879145079902677727192834830988133930058803337227875236615689930969877594966519507894130739069152600862563138090181087682062659188295224695011885670306565246282389400193619109573769251679359472213444618391701638236261033007933929227060546481507314995478363399637760003887439600888621709318909711399422294083204587369988309708610556473219389513603152367441533076745105676642902749646810348333423476893016133233195993545038960070638425767547070771407485901034297857295335589655590714538247433198484802413092385899322152932877075391730406627795268561050756155613095458511665361539423068017318098801089232585979327531402568612433701353085273440310717976069440063449188908658697143208889289861191431607307991299694931364639092516351215492269016657940426034201773736416682925442606585249347764706061205540019155816294572612304170664571939
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 17 of the certificate chain of a 1,859-digit prime (140 intermediate primes).

Certified number1,859-digit prime
Certificatedownload
Certificate chainshow step 17 of 140

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079887771 --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":1100000009079887771},"decimal":true,"detail":2}}'