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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 #1100000009053869531 1,151 digits created 2026-08-07

Value

23708365992776378787510936901960373658112077955084386925841136448233581440485402254793957983601466484626689482574402039549480912035634772186162416056981720967146167416565558818392053076010263576805411475175874081040936392807254541307469187680376281029268340124258735591103078533173943740145792877573365424186137556795723120024677427826581249712683372643191713495834409870802691573293206804877762025990374858907726724921394173056712228397735995328646281139224042440854740821375314125845765700247123760776166223067375548515730088560793416087598471641039910682870540790693754906089986075830504023787930942766345302320385429910102934843703690099577353650020634778895701367954311682994669275350374636104412078296374957205454141763452615026086839904864257539609131219132510239156927643993905264190958681582861929612990123540647998893835730029067901342596682695182897453827821672917313029315306841066362980480600643667996752778226146107260221825798883345888842844731459208030053270916739624697812663920053656107796503592191640010891590542979984279339198325816536896458153888757452875454455630190367729960484584279647427295562072817766454100321878321172433621
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 38 of the certificate chain of a 1,612-digit prime (125 intermediate primes).

Certified number1,612-digit prime
Certificatedownload
Certificate chainshow step 38 of 125

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053869531 --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":1100000009053869531},"decimal":true,"detail":2}}'