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 #1100000009043400728 825 digits created 2026-08-03

Value

570847438075859482668060994889154870934091577531976929119867607569012879123968707942887830253576505667499461947533233398569896076860972507632211387147262180155540383368399622960457335784375098963234109658798340024324964130625469018987348393203253196606655788032586516662771542122296190603241118713510202445093098846800277467808288805255141721084696943311385589197927635217437848466110232504790411773206516032236720073775521390696679068559265136236787686736589829305539406180589429866823097676626158463310740045334381972266673446176129588749232903158804202634672635167280188612880058342030013906403921070418025771582653007202533195357503417212864321751696661438478380529142817442938737591594209949882311397367813331856534114638501378178307935319733952026019691052956993584202029985504130975614707246249162977860552386086582613
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 47 of the certificate chain of a 1,359-digit prime (108 intermediate primes).

Certified number1,359-digit prime
Certificatedownload
Certificate chainshow step 47 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043400728 --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":1100000009043400728},"decimal":true,"detail":2}}'