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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 #1100000009053398196 1,122 digits created 2026-08-07

Value

339885295641928226728724009882070081743053751636686267343238160126989885232034226963807588107627434956753364309266840156379334787161842726710328404654743779388329585361583976909540756732372746728068446609613827993264338424903420901324480555324371295652142933612325773687523849739320267686339402002935454211983353376402455429429948148379370656501947880333496348930839597438224354685830664843941040413952380983572908642004089775169883438493986121785920442733763350104041840865277991808779026231919244849762674684454192248702762468411602208827038927455871708331013384672523509912314214563550971345873674477111571631725807503887707916254172325263286407439083145604268202885020437063592075016416341506867345598809906447648891669464742683952900519367950940389324995221463844391905073502984470511601886848063472901080062709358509945138037488885321550713757791566302527454682484980180017018687251858163347448117074229376523164399156627634338688876059710615981979851534084299369869466534850780393341308159219657139269792905237554727666408222296112452612600930972211926051067413547443256486937539364008553199797541072778847283371987
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 44 of the certificate chain of a 1,603-digit prime (132 intermediate primes).

Certified number1,603-digit prime
Certificatedownload
Certificate chainshow step 44 of 132

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053398196 --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":1100000009053398196},"decimal":true,"detail":2}}'