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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 #1100000009043979707 1,266 digits created 2026-08-04

Value

179265827890331258044309522007322272389691485808003967832427530753688411080914611259590542099924250690091410377451034973561106273026593457767904116426157248113734629525372229462764019582318976973552962622312253972886363788646344461235865400899333290364752353533791554362228410316990340664526129662248463431948890378846858844889712120735537079668519302488975516810213781461160448919953612492666657678261483116622255943813872343622216200466831124706490791145190209559878285753115432453522944780438562201740737026048027322753984816471428612615377526829381629583348064255455400509865730557457848509052086582601523158032492122741805537726411606208957669149595943807161634447682773532849996577666886549975200407661870068842468126743383898587996752791273301913002716317519795671393641852783218541511506143024398375521665707486870237840315653530832564024873548442954553333300183492134803450072262613277615441318504641630032780123669301707783194608014907433315581072215204167505160541290738420833522832239650638989714167321169423005648278201638555754540598752032877449991200173896472281245806587390225288868542962736957175657814609356497454370538964278613231560913601154373556779598675376305839961572530984984239918638571706713091848842334554578051864745230344924380195401867
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 12 of the certificate chain of a 1,384-digit prime (111 intermediate primes).

Certified number1,384-digit prime
Certificatedownload
Certificate chainshow step 12 of 111

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043979707 --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":1100000009043979707},"decimal":true,"detail":2}}'