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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 #1100000008676650249 2,220 digits created 2026-03-10

Value

579739285445688323411795868605066207779788689623175647142977010675996179294872765443645834061130669480848229207066846000197145183188113420623128500324433721061598256634889021628852621540038369573152532290296479720752640028062379710964080825555633502386002463606071786326664897839860350011659468583712231451986815450476087309214917961481894612922046683032702591473539043762850244965933369813797399787098662076035591365126673069147483272561824818440126414633527778120157048785594072880673899228233346721276815249872914106041272644284440087405977435080090335515863929897383888677559694363088172553531926876787256404766983224674330986850003253796453821338343826860006477648270752607467530539259544224891964113402037240680506432170049180754244621877920422565829196595525975491540404608282232423834264008606778546878189794282499781635762959354036716884856906543059858885342158554771019193272782070160384659775712747704238273160903208213599633500777587257806586841175972105541300504109595198171197865734003428956194792540335174739510804499285447645275529427852773384429797227542209313808140462968819664123508125814799558426643037408810698515458241349115893524490345403718189642783578538880690045459057520451043948704198595313253863134935361498295044936574410275407356880671948534544656092481700853752502743454827943276791458723868239236893427552965739154680797181197360362504389825273829835015904511564990969383209859954369173788460240707683709942357262558599070051837159078644027269977479930428023533566485657882764154550742729605201685532910956579986884785227343348769544044649532748708809419922243137669079376372435044668889709222349161355375994760713682915706023832154480653045710550809489713558107396479013984274401301157313414284133275101652964411936385035628703944760828064284036588552614045784836586311732469789252775257922190267696058315966200861797951939838909424348648968758158779362642159581298216627741092187729975073191422247840721722310334799362483786384841378208275194554843192052217541875478555586707653456435924003208815026934212895746650350072802559731203857464237559976763427313581884397544442618921420756993977322938829583715366919167356825198739787424121234448078361094115200985853084163271867056987202949
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 57 of the certificate chain of a 2,930-digit prime (225 intermediate primes).

Certified number2,930-digit prime
Certificatedownload
Certificate chainshow step 57 of 225

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676650249 --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":1100000008676650249},"decimal":true,"detail":2}}'