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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 #1100000008942580134 1,858 digits created 2026-07-06

Value

2553649176367113853392383008782876595348929227868649269887115426239266221216924535733297985141706226197384759887807649918239538290101620978555073008110702201108970782308157780263685467687003277597914568931102900344719212662194258465481098119558932669383367002631106249516478678199163646950952943165293044351067180156453732861358519756560781247170417263474942603668756972809866810079970882808063905580657162444104286319812100700877111921641253420300433826607413879735968880879058364702333523068825933302575556836410891921219225588383050451293417273838143565844479664820069744345860518281985010746496449090442567215337005773433927343287252531698490844769250660366372361389035541531542387866948624175897210870907210627601597879148869515350111743913391722001246174391562097458901807899443608763567151988111788846759431120990821448880273654900934738733347440519419077231530086559895407522856359334316885286766643505443963472794200059518911273370268645632838607473057300868940306486731790790997301848646496131376863234686501643990774632464798527402176275284963148146518866976901809662982966015078382624331322270370327904370328489543888151653004860038472122155360939027863429141208547430355601479017891401687970692136598710784131125024976117529990454066221494050142459849330387141061942899698752368793121937854256520450541994217134761475345111376046452737485928803945974635373230321804632158683180961145182894600144419456737009412333345427748780198035245580422579901980909105690775584183156493975959723637315521656091397179376982915521150886752180799273817234241738858221132795320757075380566658858093401646794968523678950435316186064885594942333731028904268822413819352127707111448898952300255680484276695635725003301113034715473934783621178007640123635962415905034046302963502762583984673735107049282997062362339120022531551211330177798806117126272162018622030003
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 72 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942580134 --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":1100000008942580134},"decimal":true,"detail":2}}'