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 #1100000009040592639 393 digits created 2026-08-03

Value

281787526576935296696796220960372072379841812268552433632611306446394359708948408762173841407053167058198921342072832593880647962639699958198302716256314532776348107602340896611000331586238768923241961592308050693481327722065244946653084628429201814087348482451243377203570550199152666569355521820415975044709812042051966837715277128312171604582210699943378241538497844084326005109003386202969
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 79 of the certificate chain of a 1,275-digit prime (108 intermediate primes).

Certified number1,275-digit prime
Certificatedownload
Certificate chainshow step 79 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040592639 --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":1100000009040592639},"decimal":true,"detail":2}}'