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 #1100000009042394563 575 digits created 2026-08-03

Value

19078946394919494503471973695161535919274838658628855267169026845170885206145829184619886292733208191292694206340004938389015484009735730167575030097243733938071993407067305588076180971039566759637238440556763386596329064826413415047309194710215485194828660376215083060603072761675479568886587733250192135561910399073344291987709813096554254088259657336465805958542631525898101069170399136180805392562107246782653873540591896829627320395984303461636595430216070321605160742373460074409299716903664556735036492700806759411034906788569766624298393745434238602377542346247278749
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 65 of the certificate chain of a 1,319-digit prime (109 intermediate primes).

Certified number1,319-digit prime
Certificatedownload
Certificate chainshow step 65 of 109

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042394563 --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":1100000009042394563},"decimal":true,"detail":2}}'