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 #1100000009072857664 672 digits created 2026-08-11

Value

197121075022890976827888044134349516885070818683391218236785270353810851911188564205916439090854136005707992768670977492215582142453396741711017976846338767401839240338904639778444375636731213557656337905550894017105445853188145911859029343556619807964331128441863820971896178651434520837052477226575859571315081380637511753015015741510939735355180725001850086127405995548581656153002305245500604209628459258656283628405321385360458961307883859676457992114082551612174066407484357406768401676725235811733358638356691975068562931819042252285249703141066969408204695742518805242689185624218382613693530673609717842356194991094141977034587655361555172145407605816316361309809
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 108 of the certificate chain of a 2,006-digit prime (156 intermediate primes).

Certified number2,006-digit prime
Certificatedownload
Certificate chainshow step 108 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009072857664 --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":1100000009072857664},"decimal":true,"detail":2}}'