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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 #1100000009048439946 1,218 digits created 2026-08-05

Value

617286494731078207751679395527197864927641010525465090886828730878675326582370531784990920350510309235312378519487084302355393084379093646658810278650522178118244816209616048777604151347115026081703698491702936156086806932091494967399664410377479901009507312909870706133068645184674830156063186073787181049192307601564174388737232229901795325320529719209743399923547964226786556028646458352693777845065492522373970270400338943140526897558545857700713821657049355586010586246491000593451681109255466768151430377482125245575693345125405356196515412230389857310080615752625347617541528158657364484143017026694328343005232668602237040415226862968601940811416630531335830153411498310089804329731538342783578062494995641425352530478392966120717184775493514170756996502395629674894995032162079554662317110006736209098137795254692605700496811961728838766696523676598011301677725502332604752349170444669820573125419881976041446942323071100139552709888019847625627660573781922932873646919750783845269981411573003167915035620903810782306743584634310461106430542300643356590564507206650784637908628149729770462542564552070911460594955095452292960555183759314807234545511105591129914895581207124400080396900675277476842868908605871
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 26 of the certificate chain of a 1,491-digit prime (125 intermediate primes).

Certified number1,491-digit prime
Certificatedownload
Certificate chainshow step 26 of 125

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009048439946 --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":1100000009048439946},"decimal":true,"detail":2}}'