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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 #1100000009080351636 1,728 digits created 2026-08-13

Value

681473748886292039695618785064148431579772079654529549028636199428518063639403163331492795018469188463526680794284686714213927840185944319675532549879759641940269739306164649905016104855041583972700884451703584648754992697720576982616252444041458269996421414634255738605504740191182839297823060599408786242252783277337721969602711345302695513569919699821994119194187844464239606025251919584490070253175874845816796713335361192404029551868643621517629358282936089362898541978574956967005082445164151712084350570302422047398831141470522317248125501110021382800473103528172879135971365313941141734980522401276745553804179341876051551316182284528801915281997666402995434955860519498686840575967673933321640791338885851561355831371276715417589757899924169883999063332654508477023487440892658485734807843795538668808559050275279731870585493573439766801955184476639620341879153178667908068789060278696390480253954907164692918254253523696041537473276956168767844095438716671883831705004141053543984815557619409722235222177812704640505089951662719961712443803166970766251601702596763553950236588370385190229737890626496706844796910809871161403787681712837703995175826298811645527401385396352879809313506179219032573651965293794390501297690099386610130759590428334186820852181152225418862352763943830281734092675045517072273170700973912889909830031411258088304456965556273024412809361705725495171747937567241895819756756136476680191961064985676315074960027047624823153393430304777851503765888231061082414369122615689013381350923975057052335734581005290067787522825403069296487223019264713743681125225674632175062182792276337089060158410924196999041740234408357734837118255323523583723440411971613687791076162373544077116767060485107432411
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 1,870-digit prime (147 intermediate primes).

Certified number1,870-digit prime
Certificatedownload
Certificate chainshow step 11 of 147

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080351636 --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":1100000009080351636},"decimal":true,"detail":2}}'