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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 #1100000009019683853 965 digits created 2026-07-30

Value

15265047355445575820733712895422466683203281348809379025102271493217143184757530555355453857187812489346704828942411045188893974809973552875680852984069187604218071313015087305414171980259704694574277616326311821769280901411019863089035059477054310761061618070009877499315319962706108214604840584874025986060780681560754077098023999692087441844807301568534055842781347459973545599378215266929197958239658239661662033813237129073623550796021802774016582696995116764056754076385793993847765327046242451401188580014649335497023791752456215078637073988226665950366304585247434939543400561848236383308373054612041268982643868945838004187702713047758474798297922179045327209508896073229813169018731445170883521978886960870311659428532687006298843044759214936905171560314676300608315582176886130913776989794642448310762244979972834842472833771918513634075836438294021370948816708710127063259398579500964021270071744122468935022983162552810442973769556095504462179207636843
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 1,113-digit prime (93 intermediate primes).

Certified number1,113-digit prime
Certificatedownload
Certificate chainshow step 13 of 93

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009019683853 --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":1100000009019683853},"decimal":true,"detail":2}}'