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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 #1100000009059913013 1,921 digits created 2026-08-09

Value

1600578396219833853630209501329616789844358717197294016455598074735860031529667819400037951691281287926540143182926176490029625965451293449209222422458754044913128603544833116860849577739257796398832273140361348386983173317272463379806953736733563267581576057652289390383755159814120496424655796555491539655517084895943529475773689904151027288725873273302810508165167222250626656422138499348672840324791049433956524187761318036496553533102215281512992792914348770224991939991083670528308725402587816735790819555932399293389939631006106379110733033900098314333459746070216127107790769394512743002448943675988232328494476823583452250075942399680782262832186797667192186077154582202735575267771740817788461989015770118844232181890064930324750766963632882616354139685208429642610792873623626229467276484685517840982277587360922952605425575333204059404071847615810628343108137039106079641391516984740721894930961440441363695337341532753165474014690055311159100400962828299265031222395561949427797233642544489410291478550550499540697426437276100760524004279937468283467216056086124030884298040919306979869647532165203808406809716382735816550165140130968402564337610938642519426113555597452741965559405044463783920915740022175416231901095659244812411389992710825383260246703752423205278115307959819924656916554468606433186513216755533031825799771817235974683772590092529905346037327022381201554938820427099388524897420740495949656512456764239712727116381259300327212379826662638339112737477887020204238787179704604252849342229358485346992556978749818280176482477287687559415606144856625246700483030601009110003125209717403880971579660574263172680043740648286385923884371227186507123951960155354909840474335469402599887409596828783161640189102297564863827541022651426992742900057649454250580267919023023731417166906426056977270122129709901497163920282521272876665856642456260385749895094089450530649850390206273173463521281754123
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 2,367-digit prime (174 intermediate primes).

Certified number2,367-digit prime
Certificatedownload
Certificate chainshow step 36 of 174

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009059913013 --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":1100000009059913013},"decimal":true,"detail":2}}'