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 #1100000009057798221 947 digits created 2026-08-08

Value

68285310051925068655274804671908012533482138163015685858446581483245185233568621616533697707899553337059919940880506111169422010382020549200640569555588672940007022277078532514879412151669729103623683969457793606249815843653438804366717754424431369093999892555532059177352342898545814991854344797439980947693194488566420724549362645031542942013185471595972341169723968137801612802866541452021946297741025898086972190960625423773561668893338043034735623199124652777367531187261061537691016263864535009635017967159403825087581430835200003584943860479715133713399979998783510688607113370381118660161300324174157047909762699289690659147549493743593236278789869884870724571483390526641411820992968432483253840544686882782065652628344628302576393197012922620320407946713381227533558651357550665529931250326411591200267088051962500528649946910636782794762793632567527847682742341752703044895580071891122711907235903477053771863651339389692818031241112121
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 66 of the certificate chain of a 1,673-digit prime (141 intermediate primes).

Certified number1,673-digit prime
Certificatedownload
Certificate chainshow step 66 of 141

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057798221 --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":1100000009057798221},"decimal":true,"detail":2}}'