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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 #1100000008677861548 1,684 digits created 2026-03-11

Value

2196854460612026828830811116450970126997173859768127394734029726647877616067594621744138842900320137155518676308684236898086220640513852695145213142401207220142713060667337317083891563739625754635062730919931664084959285342452798195883650727848785374456091321797113759108184469962088316830593169856040506630015816273731247123495878249777784774877186152950234918720594881201021662271348705637295217376937453899364052743776441142244126367867049876798877086854913260266525445824144376806209205126011179334494452262886973837482943096822759375566827452920266060094457496449534885329364861377774311972275634704346670059365627045828029033265197700085988257309389242276932817098368828756420262266456402367488186229309805133751572728246213474757567841385813748308511174204703481855724979117002078977785546206290111249401186386284109293774401331388828786725873018422256776279585327291111918438207828658409148144997977358618180675914866182421602741672466182710636954143381071620963542266987157774631754697343513581365878841171420736419001888657728935958483903726072930746261107843581810079747551725971895327584288493112784859353217451717585293066948956088808750324401286665492251238716800961334478818472634135960047734860410712887059677565371434900446385204197130509762141398640543621725522379965885943440356448561268752202222117758287976256786380676511080460748185761281722915810139903353278081086684397627178693711062132042839939539445554202097030253556835392298009932422427944823295760761357556168521009768029461767904743760414767872111160380159763589607342194771640049020645395168597949574480043157717228015687758423107975582949711575578649632542786927253790244835359180601640352813991622643
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 6 of the certificate chain of a 1,739-digit prime (176 intermediate primes).

Certified number1,739-digit prime
Certificatedownload
Certificate chainshow step 6 of 176

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008677861548 --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":1100000008677861548},"decimal":true,"detail":2}}'