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 #1100000008677878152 387 digits created 2026-03-11

Value

121745146549955008565694773627898246892598878588423424118111033422886204463994603282250910299556675196105904357419992340977680548970883173214118382906310066267932227776503658540668524425644757287890473377174543353720055738907688410083093162826102781762685466402504137071428054866199106068227759763900753539624523205219820707430415795342890883807907106239822658178886734510895445717959041
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 137 of the certificate chain of a 1,740-digit prime (182 intermediate primes).

Certified number1,740-digit prime
Certificatedownload
Certificate chainshow step 137 of 182

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008677878152 --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":1100000008677878152},"decimal":true,"detail":2}}'