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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 #1100000009080133381 1,167 digits created 2026-08-12

Value

644381875229148642833656071250806544329516126288217157066470718570519978781944952193685137282302770493156020969149035579667592567684309849825534537107449717981624699843745872803365366498253755221038092745883669005660701069421853223582570695514305548800640781310727248957155896069541671252283990981494701365913693786169492903523500130063761519988407674834817519304274652307936831953913136565159967286905543698967286818172274473667324360190408616121400867104485768849826861559918256601653874223658663743624731013910824744237585240574018235499058404945184993105718180324561920976618851258037904991475739181523050008119083727217408014810335136008843343398739327130424117130217044269326979228207933759993685730052065292879978598722746664574928333719263805942547538829436291125745017472508876680806257817005521984903984881201826476541389146145761082410848809765718091538189099327012764326672168064206210241243019763580809168569492318824873644843564355145766492619899810597312435883076609040642336460853119392344660969479952816316056896681538015111171308484679743285680411100730695678695277193262562611829425075717467173217107507581021107041965423446714636749256506426581919
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 56 of the certificate chain of a 1,863-digit prime (144 intermediate primes).

Certified number1,863-digit prime
Certificatedownload
Certificate chainshow step 56 of 144

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080133381 --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":1100000009080133381},"decimal":true,"detail":2}}'