factordbrpc · fdb
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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 #1100000008942579712 2,521 digits created 2026-07-06

Value

1285495680316853441893386826496285311605002064394437760621394935651302675360834430624369777293336082106750497336245076320303520276226150548979490959692854471841547109056480304709250776682850673998947553496570292917160460050741348652324165865776117050743003151854829816835891498852992848088658413105144544369710775947454272244370548840140515591232939037813209984500906075178418953800308476466245048590087608885442466585825821198096868740255927716235132009871655366564390879732900544981341402530550703512964063042099289090607615280205471793287614872235110776245363077047122495803810332827048416677829334875827003575389694852531166255077477431372275968633633051216414438952143237045797010341163081954818637311873454511679780274821916974564890181728753918822639886553607610544070502421850490099136239324853357921021829136139384961149955016973435153527332129518885137848621035517831546232386459603894515396584511616930796597324410237412698116413997543884936350054516814563687460571374896356129841254882731093712266822255979364905448280863141399630322717373028174149633997563467142201527729970568721727447902184595642134433855175836726482742043370589239686539563542473474270024697593872858793591243849065796581012002950491830085947561003834894036297080229063598153279485147012732526161767914087492692819178698153704656482553775971827407755442508727521799577764937881257221675437197699362317837486780267634553132472576854643738780266264916392171176579731309523260350460929779547018594325551110249037575101699204292780042253863879944898871155624124547220458248831598002839645149843312304945793073003865491476992015433213121886515439757102168811780947214057671957921138591114459878188786804502395379395584170895695557263551866293866854731885960766545218276431416834908993579275756038618301030629566102488285159760679711378850834520128244678137221491764372324629563686161872429016339808763681108560066659393028285413242303779557471492256979727349764350408405929944623554184319639643561896844415875820102787786439598808323033267597404757652312160906913798094675899454836729880897792472263233494857542314041249180445455245466862150686728375237392330707547378441238226297021550304373834753238713235949422066307507817119683205204514236759800742108216572294691764327512168301452224966993808197476101297930093711245158821214268071077452763286445102861606648091992193431203286228200412587510334243530648766128152765580191987737944828230595562679110024574344364632683550746411299911545977112399008736385009096590361281249684249272318935573
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 22 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 22 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942579712 --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":1100000008942579712},"decimal":true,"detail":2}}'