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 #1100000008677878128 471 digits created 2026-03-11

Value

839790086655358765212628722104335424758263785917082568423124741569285290842032073375708445753305284602102012629419385197383390002399808996605640068707986178914442614359000781802418396574548392415417002577321002079792920958753827445589666912380891063693222287814147249871287876778127546242273056634886563543751406359848770009786004939524136622834627734001194612241504397707489727775785289715598573182741752533050506623535259923659108694020561713038165295880249003994075951
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 126 of the certificate chain of a 1,740-digit prime (182 intermediate primes).

Certified number1,740-digit prime
Certificatedownload
Certificate chainshow step 126 of 182

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008677878128 --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":1100000008677878128},"decimal":true,"detail":2}}'