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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 #1100000009043498488 1,066 digits created 2026-08-03

Value

4053821111818262018915397987808130983996745547922238006936911861658311941801152552815636571928956543315076356297018206361665581667744421352080927979406685353177516746241247218686799652304661642593947470005878238940610145110627329672975867682085468756471821355027225415344954415517190476763824691667573279433264860271065473817167847766150547305662210681080128859411041154334916975080051088653432779958346872585381524712178633947461524616322010095164133453236278986377109877846110110197941011410960814490634827100264891475090122752855811600485807909465524593550237921922492015248278176345233876514457741273139791433342352187303177638351137028878577679871103325668275616209344546737348255470689275804657965755517196069632687229932479606150711784881040178211097529709660160129618903644933556033046091099085869133330394570773995643896550052989747859839090556076067412382959095688129296336377661239869213513986202306526479184316415286515431311190648996073107126669221015959039471744578830755126912637601005183256723316541424132316333732405304440580723118257951650679171731
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 1,366-digit prime (114 intermediate primes).

Certified number1,366-digit prime
Certificatedownload
Certificate chainshow step 25 of 114

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043498488 --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":1100000009043498488},"decimal":true,"detail":2}}'