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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 #1100000009127305804 1,092 digits created 2026-09-01

Value

144220913912235312587325788671946912398771453532649771320663183032072655461342346875264082529213418335977751830834287968435858177114533317548828814525992676319367628914361376468850196868444956541936796472108474737419819586975318588868956681540937621232293246007282245707836970990388830152083677532093116120216098320596547033151996011191445674772001807194374337077171233647057584848633947587244743538688156547363894235272490899396232062801842268245708312909173112020348592943979563817920034769883897868145987988599549487529191356242806825724438541469084259638511880755324968663388870118939657272078204769969159815227135057766051850710865480219132116724675333615329684887303293038315671587210386341731364697444885557360790266811323448882408744665247636870258969004466220579326458393762439505141275953272061737466289254125612000546336959189913931043832649638723101972278096263426447429617107272383378413675056382370796735499703436799738881132484337476869646513220386565655466114406372357385687683361923310204196192711288765922155052076785149154978079576814880591830198456541537456550824258362357
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 202 of the certificate chain of a 3,105-digit prime (328 intermediate primes).

Certified number3,105-digit prime
Certificatedownload
Certificate chainshow step 202 of 328

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009127305804 --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":1100000009127305804},"decimal":true,"detail":2}}'