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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 #1100000008678210717 994 digits created 2026-03-11

Value

2572222117060734564254446657348699223609621385124149999193606686893959859115273061832609605353180766018056951617058170445789630877095598108059779000168628159802397659932787112916000166402254263122033486796471718046458669568912703722110350550227141459131836467479486018926238583043140106935275170713996760647520949196084174442789573942328486553050878888378240599497244003235238193819321239266873498441853179333992797244481784413869442516214530972936599767124394373610745110621800826387435329754720710881151355444557125855026220838753059378197620185015525813837810656303451951849460886058328306564276858394037175658881442984759478391608819604055041498935492340165914368908916559189276428954370564390871356710003765676588970900075179503000600569854495327239393764291774932238567843125979620263706099363316471632900049045507720600437973962087208871467942095103078831590970116358287273754531582624573817848754512627935921915064816121281977757609965568858006690256959024453078055256379710185358013519
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 81 of the certificate chain of a 1,843-digit prime (185 intermediate primes).

Certified number1,843-digit prime
Certificatedownload
Certificate chainshow step 81 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008678210717 --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":1100000008678210717},"decimal":true,"detail":2}}'