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 #1100000009018405810 638 digits created 2026-07-29

Value

12741416371978919966927115958167312489924109734766223392800980881018772676044323944525530075096800303339505553228685407326108741737856325141209253607167768099658531164833500586217115194912341246259847085662917653394079815439657573634410340989907422678379417673397073552443041623691242093819657766208725016012928262208097061136843745694973583459275685509096169462839926731315663028004036206873897020869374538531836876203291301120984643781511613861233313778054118738008565969097637012585570204792359362124608118828761508560105139736643506248964672092707525047349221047179189105568042280019002534086046321802516560168345111086758608963725271
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 1,044-digit prime (64 intermediate primes).

Certified number1,044-digit prime
Certificatedownload
Certificate chainshow step 28 of 64

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018405810 --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":1100000009018405810},"decimal":true,"detail":2}}'