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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 #1100000009018917384 935 digits created 2026-07-29

Value

22978846221529057391642073165590960045665159127240621179536273306274828233725792339549575888696214283031551495573379049029558641742625182462796109019583807900908715797827177517499421921189456092604230586468047580070337547086577964389367357954114648956253431646947824901210082542585293533870590320845819476311159339786782215530058310296855710072732395791167410792492621706630944806061189335298531978294466566598854981296493793172053285042028743383392574309431025287124226029531786180258846404515638572568238087794188180226051426122764400736223904874106103613772856787471816364957150628555643968730390136976504637023499392607001815039468095007679232495761680519111965608504864214716184506166432541378122408569089673373608458703215947590222480536661646810907804215633611100633635552583582434841611784985870953631453027667426806388533364385577012386854887576402196276109213163459049180840909261009432287662455283132361932849756134781669473
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 1,049-digit prime (68 intermediate primes).

Certified number1,049-digit prime
Certificatedownload
Certificate chainshow step 9 of 68

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018917384 --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":1100000009018917384},"decimal":true,"detail":2}}'