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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 #1100000008676650404 1,959 digits created 2026-03-10

Value

499572249869773396260818851143309451705215646463401749777625909658339228153430195709041066516425427751154382463861984477418417544407557268438182369739756590616280023006980649573721669542117114593853142327945409194535347801174930838871995503114657666587827701165502975450379006947884708012022994387390618800245391037012627034229982036496590105835950686464615655599911850615422167313498060117698334233641672472909016264539889211861722237451786163045567146023233577405924934355125769678644501316832367848487889357873454659850233986149498735274089028992705324034106846897176160969530676944980476807277423055487827335090900377935542515986056875310355014051237324439587477775115725274765750196776093035930628835036653216138867680188730390852568478485669181803430914857738211175992635158153917486383805871813459756934689063803370968476379153590120724123294198865184652908560816917949099265690673592426835839895721476776986793531157596706135250140611886571463293495379670349804293780408458143009501224998834842205281462686424221409331469932149762222107041484951980134201294133558529167227665157717161546177091854925026395240891578279929794593373307761819516045375776660212259118157550862979263761346716111999443132906489972644705142430040141960203713165481183269867271524230912805095950609616736211060756584362962233445572966638626305048855238515492383551651843837206685372961982847432653901766351140404757238304509053774239539316245145951048798022094779119686833845607787295781260582248180142736175819595945616402282424746701232555146952704180800694966107243537289527367921097080735879977635334324706745301280021878852378416423914204976045086850331865863840626536325365184343633994844545112641674906124957397274973941426559709588312541086406110473391932261545718778173536987986221332232672297725171612389725092640708134008782568559030717633803020040260176208550398203543875307126986127898033230139427720343743596702513591495361253787582013575803803134093423820563029
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 76 of the certificate chain of a 2,930-digit prime (225 intermediate primes).

Certified number2,930-digit prime
Certificatedownload
Certificate chainshow step 76 of 225

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676650404 --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":1100000008676650404},"decimal":true,"detail":2}}'