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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 #1100000009057768921 2,213 digits created 2026-08-08

Value

60118218025476560348042684528319154577253666455233950138013338740407183650669014896148269717234011318119586937653448461414846799895347227854943638998341264969990135847111083859944789872814481229027913786305251209917083528435488620101358540670149075562251998826679379296851939260776877180749281953536125609212222214422512796499656064297987657255344317597223082842203913970648295980156956158909403622165998915539738302131074892390257841987620566508600401775756098476455881457408419157436122246116922724683113251213376186718905117108076493100294216700449302882184124422164260001790440993171107024139235232187787128901017630152193947174369088298344633261283517101299744221028330426977003344825443134115368917935624086171180871346511560874663710226497967692297000867549081511427384494406557836662828578199158732247743267145230465818196848065069287746530889104819007332899711974369252639920974267243722744775483720309531977713955848274180742610781571248451810335818094771118712123979816642180712157495787929549402003055304509699488153400859810935367671257683112929404571106838568398891513007448054103418364874633884134822857274543899523276772923343638988711005916178955979080904470779473264937196796509393370550405001769412966760022507631295873653765575871214077311709730628592132692143381642778860417408903578404004558445222221503920312818417377684874794863954403581190322886959753566393548076877025043126081755402311977160602572027359686817379050414250668970919528807942761796859553435934802470748762753462608527135575190187517353715274452454237657393714716326215559345352099213764507875899394355409829306602925872119557273442561481277916262807050424671170242133853949828074861471760681816002614038138666209227034599544207322835790387115592232681176542976367816329903855094562184916558736556667376315664226560817588637805930252356884327853913193065695122742117517645587159399106707247391736199256372763591880248998243910478943395477397936407304770330287334147258893227607274904676784060300294166563810422716959063247559363755158438688637583397543406701847162907652906128596318511459139291501069862858205008134155191932457974547639410002787964492900224673467724819274651184952890566850262329440251662049697740685764329
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 46 of the certificate chain of a 2,889-digit prime (198 intermediate primes).

Certified number2,889-digit prime
Certificatedownload
Certificate chainshow step 46 of 198

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057768921 --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":1100000009057768921},"decimal":true,"detail":2}}'