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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 #1100000009088757947 1,241 digits created 2026-08-16

Value

11567740589450248166867562389256289434018178015633124229851636083718102057606737355309535619572276258647314624366144208824490053250887130708186817921688684195860631982681615185338415244342964872852414163457136301010334209491137356985128031110587719867911057296456272913789876845232361485322501111161525253652489976208371345235037302986682608564462881192540896150680439984466085222877128426170008582945610939012685223966004399344638037636647714571498632912032705830460073399753106875985593219819243492783454413933534182773143773649237209346854655559246762358718708124581752943868171127967175561078783113448049737078796889543315383308712706119514312018056196773256720137633936141455787480724345180318371287369658827973808150786956953020571321201633544233128246513953833104067129987016238214540089561120811785108544210430862168595699923782917170109165167119257586444345132411091772281709243637463035189648915121112966430123981247804237345185353768825353452207753539880688192272918917781933120482005159482571933551296181005125644255400677211281592752602166942074621921787478248010678507908641958111593036044482295187661923628004960141831415415099898691213777863521523341738621308393731239159424158484020100560561733845698914302322857993358265519
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 64 of the certificate chain of a 1,975-digit prime (156 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 64 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009088757947 --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":1100000009088757947},"decimal":true,"detail":2}}'