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 #1100000008678210755 672 digits created 2026-03-11

Value

157929270523975319085212382623523892924219102978001359050440743538883573759495840359737703941400552180195669350532024142961262075605800027822037195103321130988169392252258043992371408223716170977770480842975925345066855732610371331221946666284488192094084185558883650071070133937869462125939663350679388130196090926816155516382677734419129360298737950197977166090531551276422479879701736988211463575328927058507469277081013592113469480899717722687068547969364433964222881061545993461582032645217306355764874123995183465811237247143061847144597640468305970529309351518987247132534296870448463212090537078329328382030219154048455595577365590416062140963188828083897196626121
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 112 of the certificate chain of a 1,843-digit prime (185 intermediate primes).

Certified number1,843-digit prime
Certificatedownload
Certificate chainshow step 112 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008678210755 --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":1100000008678210755},"decimal":true,"detail":2}}'