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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 #1100000009053587259 1,223 digits created 2026-08-07

Value

72020890888353090113415436181219634674068592551462089589949668311372222881366813165310474281437378034667769903843352058340733964415594889134554780796105176498523196037012779041691700338507591357930659344345051429809055683038139722829447577927380948573486605060638600916414244492841938409544106386516689332017359132131799729316590970147010286108174063934197072959032724514546524440190977687268375367216374947013940386637706189011087044861510549196789126826123824525371346530552541530615024524500478253089780463633179790068631425303961553458391798102097360293457671894432704017783381523832735468426686692302300166645128734016150795724239488652393963324684101354006574510455593576335932494868226435995120376118700127007466057156515642194056327826582174883311204426484896630943599066606492899429156276729338037106505039304256321843888176130970985683314036660362734371114415414917867560525677520442251488526344503692520886485786246080247927987052398377882986286895124974423641320916514327665968220203646011622885508525036796103934974173603090426192993120687646445878739635469246684316405006136643977588391734638116378006340377045654599056601182243619644164753237679699185848246903720336440779506330331806786701394364450137895901
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 32 of the certificate chain of a 1,605-digit prime (133 intermediate primes).

Certified number1,605-digit prime
Certificatedownload
Certificate chainshow step 32 of 133

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053587259 --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":1100000009053587259},"decimal":true,"detail":2}}'