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 #1100000009047821527 771 digits created 2026-08-05

Value

448278954294470737206233007604348312727704534579142702130890218062856929834263638450267215812924451945900024580990763379067040356634307705366985291387106184932385303084205383726674722271474652721412248539046555956352850436264453013400865015964698082940497029386542588709387606903452594773328284932649819474098978955593836378863441805772448655955230391678701342542438953576387562551793418342548891470027463404855022258086830937251710052060926029451433580986121763105904080459070730975352110616369625124841641440654391746580051078341717135952326919143170829329566590878235285868053778484310686031102230217839659750181536174207980829894182491867498124965809733199216751711160553052125101905117908807877796107721147433174652773756827944431937324280136000533312764482554414199
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 61 of the certificate chain of a 1,470-digit prime (121 intermediate primes).

Certified number1,470-digit prime
Certificatedownload
Certificate chainshow step 61 of 121

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047821527 --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":1100000009047821527},"decimal":true,"detail":2}}'