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 #1100000009078003853 413 digits created 2026-08-12

Value

56836998488407248878971113490316427158749969037936504028586054432367116179625101657157021926342344168593487439679549592667396437236399138255280190601143895293413507941517184887382709177755121126218898817012094892002488188499666408280201423390803427268255749112512767724262149844378147319224723957546812756461621964191518084384519878283350384388711343608728973490629820144700433330537179042472952210302082762975281
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 143 of the certificate chain of a 2,145-digit prime (171 intermediate primes).

Certified number2,145-digit prime
Certificatedownload
Certificate chainshow step 143 of 171

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078003853 --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":1100000009078003853},"decimal":true,"detail":2}}'