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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 #1100000009084386660 1,857 digits created 2026-08-15

Value

160663774692142319819869826530267352731335888828416633056070988810152829349874380899370160625715050840478753929561918743872246319878117364493942057916153953691281756609045935177762503444314541282035273084090418763778618752012697087625083854798290017081303503624723372847286535090168915560504931521591901914738450001109159034972749917472003260771347669404484370945457865540169795330489636158052044131334169655253109429914808575477384087975951076841965606685960428839200003885792825996295240331159207955606564032215980874284902914080746972617197998543711631948916923862830602766691786431363853922817386961313329072957422738316419366422824126810798468977614803307053816513061779233500800803043874620494124535260504613388974589618504623583377253941716194669286856486568190219254980255959763556324129430803870954512047181567901812970189390833937961127413534997447434758222528394218308196653218805748779852323136619871551585835939305005954171132770319214225267012397214048491883932523821529122197325354579295649482747173301328063467643001712037753887678337375953042708170846249776244389280558303521799255465027969017827794190725814286483372366200313964278117721115320576048708748102530070982836868979700906820504097372219926653402226200725589957704751552114820241435885505522987608377487575465095627303173215533737713730643860879097052455774178123041243787033573446978752617395058408460138856173262770190304969711089267933528220085942575367336030763602161668728686890510104562151945254765019883976322706715467040286311872428179794818651604405162805633797724240392684516672188805073714066944256298638408681068985752974006872047504216810998319446352576744892937597742570973447541756883195012536949865841373516170264713031526592068747981634904371114017339560458528135973052153153105158145026024517135231389717242339939739042883537310000073535223548571813892580739519
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 1,956-digit prime (156 intermediate primes).

Certified number1,956-digit prime
Certificatedownload
Certificate chainshow step 11 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084386660 --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":1100000009084386660},"decimal":true,"detail":2}}'