factordbrpc · fdb
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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 #1100000009078200041 572 digits created 2026-08-12

Value

12398405124786934504728582818408181860364045936145667530754751808658633258194216187690812091858672716263904259808475039314681282222760057347922103350803500957168191294037542341719962976699386706220055078066809783611837226979265614233553892683099588646077450277145469480966521429574640117335052700545576602202986990728189675315646793503175928618698383684472675980881204137771326299501822583812238961694483178018922891961031181870965325962809401761146862497901350780086905285232673935596358087173006313990012661666590684441138130213733083693671283317472990094898636844910343
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 125 of the certificate chain of a 2,146-digit prime (165 intermediate primes).

Certified number2,146-digit prime
Certificatedownload
Certificate chainshow step 125 of 165

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078200041 --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":1100000009078200041},"decimal":true,"detail":2}}'