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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 #1100000009042340368 1,245 digits created 2026-08-03

Value

140672311907116064426305614988672521852956931416586029882582577247839924268300734630645017348729920420710523074577560145334516852015041057955687225950679913179164663931243763587470288833273947968070311056170052539654427070645797116041354739068269362381636316934306672076546469637467249593820309178349549400327420175568998547248731630752921983778252216510982986496263344372357830153334093192025450365060491267010121510231856033396223180973485657737758449729865073012835133005273582270623595338783452463296329767839110611016439876024420682334651701671338288916288226832860776995495619119104403781906916674958647083974347176304074426034822340875073477004651336273638675012656480889229879957216284308203545086161238594446383203071341619685791826421645283645898989582893519898872904873808288102021643592630484859079178592049917205378817788168317300016882190449848254799500210006898030132542488153448467451850155128198916132942028013534645434863052447863139427202686721504762835947397836703804957512962409111294572881609246564718657153642373837534392564474599955670686474545064789795979277123964114982870804113086046812881192609859593664079468564225980048792568866766216257908537432867287753187678933636667743021684178678120093303066528566058901054073
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 8 of the certificate chain of a 1,318-digit prime (114 intermediate primes).

Certified number1,318-digit prime
Certificatedownload
Certificate chainshow step 8 of 114

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042340368 --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":1100000009042340368},"decimal":true,"detail":2}}'