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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 #1100000009073140122 2,076 digits created 2026-08-11

Value

217087392499803515533183772846321963945079671663178265997172043143364157967321855471843272947605727426913492684327179243358662567802301312739608109876246637769623492957242953625178201654394492903766417072900154541855103814001899842748314247082166604234486892183385902396098432795550513991195178931709891155628313001040671336753657169529369447291051293805348643742985957160447308275867352647119958866450160221479572613260452425836523603627116332767144959333436123003107931265727951508775974148170199884126664167698933999272069724195604505225779024512602730568915745885718077994841427647615288608901098150771259563432077136918205054325604545354963273519122378033686921703438223270531986936533819985542623776318921958107858050637568644582802053318706081673203075038412095345991905996513017630574644142520520616563272323371495884578965406858122281760069020241476478879487828083446795792221661602262762741028759860690085071635633474123499018291913720612770333736463005814688233173616886703476144361796817392029666296891204900820144047714002125891197449789715737256665067250505840729256319851167542370639367396595093201183358140327463518633878817419468020079014501299963175189481011219407785463229139256216554659891008778314020976644828998877520163142873220110720773008747048959580760436650720670528503148653025473418999319218023884633734232590645575615271919070881463554718172928382195048908007473134220208362489363478266685253156701895436387792759542352893792645684946499190720060911214330822668836333453902239071523210563971870964177529989420677389913184642874989317194231901318445060332902451582472469417500165249398010636424539507753487384966746736293453501310778800067868152718085404053807970677197352470978500631335305379941624574376479117263969411958409697177904833727749015657508487354768076641635231004538863386139483059647811665097828474023291418139081094438024750014814874622655221430391629575067926698529157087115632612067540750428262799576720462224256880189543866781899020650519433284170472559578968416109711532812566574393751827505255981204416737018204563471797973211
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 2,119-digit prime (164 intermediate primes).

Certified number2,119-digit prime
Certificatedownload
Certificate chainshow step 4 of 164

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009073140122 --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":1100000009073140122},"decimal":true,"detail":2}}'