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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 #1100000009044564121 1,045 digits created 2026-08-04

Value

3821927146112640251768532146240932867497082449171829824157923049460529462691213355057131664597511702119586090623987223261692108223297473042078923708374194392646876460993215873741121167013768774634771172099979473141574406746938211824139699002293889062367477505397078209664960133080790127640720127641939084828006547595432560182827913202501154146061129297079526981771642937598732931212327067185000234766856716497675338485138548661667716454962990731942468784281366239788625624708780036139289844016979174873550881709422973106556251514887587920337502033968207366471556287695085341511694205119134250433732213175472659412201521989417384879707837505368139317138933233469046886119531168099063253271532243237264179212407014775962234268013457508698271995683811718702616571019507215990601906080118607424584704900960889972255387171178093789560090370026689706713907684086575041872806623185102502335824334790327117703744882712527930483585434714517089211629636316851100467696586649663512151745575702275810369876405547645784906447830411514264386198199051087657367
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 1,401-digit prime (117 intermediate primes).

Certified number1,401-digit prime
Certificatedownload
Certificate chainshow step 31 of 117

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009044564121 --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":1100000009044564121},"decimal":true,"detail":2}}'