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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 #1100000009055702241 1,830 digits created 2026-08-08

Value

318955507021649146575287139422924774642572631335313723049256832566969560382787318887150518825660019174058846635278997512805567362809365694498866383306706018777558277758007131124488410862203534849658490962503566474608628607285095375985981259649420860575248306608938880490357319009669004912615922637766180633135412315340049382511438861496699551106436809313026545675490493464830098180673105188627917092969519426516596787453501115498611325327038051493127524161945938109042773576908348162619190904898453188589433908861862747281172028568007926017164319327657311463686736268261134466596332974790162810479488850314796216119880215760387815709354494047703646859439071797660529935706121610921623337713734467679609001519871882935490084873377754266640808394211509102501114383396194072895531378660316948843912611051544759360903578652993748846885437152759246633845771487618016982617508650169757009048650298768278004046586171592135293210478003648539244837127193181766167728081003088492657097495821290393187366851437159569724859679213577215296647946853643393564294213623648673701999962173745895137983392753968729539853915686794087080920963884908267759017962091761812283620545057203051734800692157825412292760262829134979399284579118214059725610722370816827431343665461749561156343310976178978705527308431135269480559894125404323454470129367035943500315160491901084049057931072991155982897404885230345905448929397797330868795683901239654542509167516481759681780359465643072363048284638905050681252568010511416517499086167434228258356609457654058466442754221274511056184307696858612175897102221962832430250200098684805547049102025565761531166139750973994877273064272183449843104432038025325505925325675425919357715938442507927573134329322639267922939091698567670383112112389351502559471079053893413669479902090059395291659959336005036434344182383589
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 2,229-digit prime (170 intermediate primes).

Certified number2,229-digit prime
Certificatedownload
Certificate chainshow step 30 of 170

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055702241 --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":1100000009055702241},"decimal":true,"detail":2}}'