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 #1100000004959538732 359 digits created 2023-10-26

Value

21520781066425940727118729913788696467281207390179624525600500972984765020594981390645029062676831636414451273829381552862194450483500377776260491114098349434541392662727270076543972406199144585683402459060088373008592034162913133518384584786647910740953113715530983639422300036767692463222566479756266083927583735313963796453252709454225384324073469604969533
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 1,392-digit prime (124 intermediate primes).

Certified number1,392-digit prime
Certificatedownload
Certificate chainshow step 99 of 124

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004959538732 --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":1100000004959538732},"decimal":true,"detail":2}}'