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 #1100000009028769856 836 digits created 2026-07-31

Value

86342083252880256243276196203710665675071550871515678415113186046271005366384580755942449986573042984312073932763531095748119952992356422487181525639229134695108055866812942781022347865798890942516764207723123914256645754571119356621851893244373337187844969085844392597831060474669612940704930080222017106190343730187432761863137441799240586418656008528560103148052272445761383733965396961456433352366736093632342402069870900059613152606482459560382034673914922470766686346716851226503013798406864228776196608720359962418964765863860403004727390644133500908516109973512751327427248621480158139062694775502509393609313200363953908520504867892475203633342039717379199821265820261987535324917617187759633323326655353359836481450355533355319982040099978523912334113151489551705230605863609695768092833811710397496106299865100181656988915899
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 1,221-digit prime (94 intermediate primes).

Certified number1,221-digit prime
Certificatedownload
Certificate chainshow step 31 of 94

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028769856 --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":1100000009028769856},"decimal":true,"detail":2}}'