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 #1100000009028337873 865 digits created 2026-07-31

Value

1509126819399537806802512340740822569603914076537290583753608861203162724645434197603854679336589031850197192702765486681567513363000479225148025763120981381293143767136184657453054441954254697184074213187525805239794507337531410475580946132372675776686761430999516550077234450729209964553898468807531280556898196045470270628552161902843913277898459768782857346636501633365344310463357144257594499212973493394095466957365353668462901330711223384505880103607209509829461106431172549285227642183599978996614310030636262774602886003550484131122644371864390773332818090416073649217870489670810701868502891352767591361656636105107722496913499850644089845596527919172219542634375836755422067132112222056188147724290478794385296992162099869940475414846258727139745896574686845395466029276025320793760793699458996839039150978889396673507402530169187671666599364204321875443
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 29 of the certificate chain of a 1,203-digit prime (96 intermediate primes).

Certified number1,203-digit prime
Certificatedownload
Certificate chainshow step 29 of 96

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028337873 --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":1100000009028337873},"decimal":true,"detail":2}}'