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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 #1100000009053429589 2,172 digits created 2026-08-07

Value

530665911303162861767876871059547160224793385601918339757824477098556899998179233963740411590520512027199329143867779049459136853855155848105659789178270282460723285376891703927005760944379126430668835883588942268401157760311275366085653214531915676920304070798110143014676035782195756889542993118096099981831628366109819311561146258482160609266215043566827871065105382999681089302403878708486488291956902815414761322852650809157852848104725886556953886743328421460056588282776293778963890114781857616873690950301951984272205393972884535763791578347789008322351120337745750318852840241394535937117730180988405451085479053479589971335943593419017638473315691083153643421156754051238375043379948933742146180491795281080184712909085581455851335420878981022894076056710376176896876236858803388466742481746937615924493684878786588573009522729268405295571113428684617201151821567919091532411167968236392994295681065658237106216307298752610947775886265571053455969081264117411482289688978208294474599186423831761730335724528874941313557906590336708093770520312910548602729413347272984433661478027049364525539188220354611093041169717983768618053816012682568975538979849736233261021276306456159127476559738232524732457071559463426051481492593178791933869820278738526547604565645846258660543929805656054247556101748153667484183427093567878757250477133457139086366256720832137749702327932981662042261296717318837269082713900790852842667048488655396117356527793825372900670857851084597193403627661819675332151935043815151703528571478381349491255659225146850028502310678252247098338038387674093172924756330074824158057713369092792454205858951551980840396628421643322035669166150170121647973769664748369949951072194687203166849441364096808455917034668165120262454793755535754495550710699222279627805780328669167828059637364979217256189230126374632739194620866213203677495824668235866495554302764971875684702481852728560995233965080804442430400997856118271219951753043535060555537730149533401493337306875798482898025226840530626661230055151655543999565410788676308827751582043617317063418350718729517715719947130267762088611107115398425206171418509657248249271713102051348273372720157837
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 19 of the certificate chain of a 2,400-digit prime (183 intermediate primes).

Certified number2,400-digit prime
Certificatedownload
Certificate chainshow step 19 of 183

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053429589 --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":1100000009053429589},"decimal":true,"detail":2}}'