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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 #1100000009041091285 1,057 digits created 2026-08-03

Value

4842476789516870529198204716939658482813110346724024174502756067380109762233726607157633726335546893355173374083926117323412899122304159531102643966138644590054084181323165811344964647968380905577423994053458629125045224412824852496126870845535620798640860647947512991098939678179939536627030055060256996143939121531899459372374712683497752537440788540432255494030716310580664241400491406244877249090030010767394625910803969643649212424209641237418910031274031286997874958220921790246687019312972902296299942685435405873949839686768942140794331508079925123070850600599158254504168743064838912421949875557581776883241764159864850528068860180534670929469335038986822357410306083150110804551546433628623300571112884576537168673477993904889018562665277369421974214795236558992482035712163628816922854462558404862659711920455604069021774333851130038267088215669834166197712765961862119107506739794105762216932482004412095554844890759512415103881969183676793064362658517207623759739971700812674273700972530721757400166375081856082633330710959659671965888397714387
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 24 of the certificate chain of a 1,296-digit prime (105 intermediate primes).

Certified number1,296-digit prime
Certificatedownload
Certificate chainshow step 24 of 105

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041091285 --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":1100000009041091285},"decimal":true,"detail":2}}'