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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 #1100000009076156224 1,634 digits created 2026-08-11

Value

12973652815913625270214721418102139161482824433501953474177313595099138880508770995386254456708618019065629150695686960260440223504124821563731273358497162500490639163175474856918302500729457305363053385951139013146477132752321485634284817640079874485994234622724066187895998915727439439910368584636146543595106810913735374736910892348646348212785171920612606815293362594638968378044016068268574661202791439479163049018652401070829397915079898690531011447228223546956893680739432764963084234185838495510212101931960781554102560016353014227290705462276742219467420888279881069772362185507354624025179806469565504737353242128383959050215068202084850223683978781799992284949568176153666063687543850816499975368643637635533512037385121924181253087419210245946720742219656075524804515022704186863146441566005117604828686729913515657255688514351920281437412759870894576679519591883918363450428311867171853587941655702077256972623647783187628584325270234360223579940761887100804015254318228123141542490837597400950073705740411019145200599593021107792124603550947301034890835965939915862936439585638677816820429558286389888165637584065945216827138326353793353036495421936971819841672510201892253245731421002630847445927091870599308549102907649445122702599752832403415248327374538902960017963467619663043837191525321678209343590345882307211349488619192669345773930251668115255302914535891772324402320092291554110971067701289880208079100300294170277069451908622799741622832143408235460380810292259933167051277434322733063587189183236152935864575306426125614595408379613594902536323199058193651471764366980739632225943032383600617284824203916541
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 16 of the certificate chain of a 1,812-digit prime (148 intermediate primes).

Certified number1,812-digit prime
Certificatedownload
Certificate chainshow step 16 of 148

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009076156224 --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":1100000009076156224},"decimal":true,"detail":2}}'