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 #1100000009043272742 491 digits created 2026-08-03

Value

63939927314207448706919765022813246147658097737501150153594395977435131820928654383693700745903554141186045566172261206499045286399663441965240788965782680139852185156091520282965123889454683379872328073971633396319824926770970082385871423449753342056500406479799711354367207072593533931783155188151925880112098156510016431101162200227830378142818171114468072429323452126053497358566151767720334663039707976507300802041188105582988972911615910267535599168726361538940786024241018448956815627
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 1,354-digit prime (118 intermediate primes).

Certified number1,354-digit prime
Certificatedownload
Certificate chainshow step 80 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043272742 --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":1100000009043272742},"decimal":true,"detail":2}}'