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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 #1100000009040652159 1,211 digits created 2026-08-03

Value

18773841423685184184202046047579286825017959391943687397172994760057613044896062238627924249250258307564339547193059831534607735415240875192320655011599349992579743547275495644818792747919753635769734417248418027171714910526604648860252423280862899058121467964348952379153645430394339024300485094466984175722695498076301797687617505206085102804215741578795154665593922371713440779614215751942134050042268481650090606595603591914330606044997015651617005434311681008054503127023774163806725120492839638893499908624229444804415135530591776170520580592226487622890762114130725435960482868157607915893130830823689525281932488071585373517223182116265119170316505187054005130969133869940665296654346163038110918241522549463007119846272392819307108653186928089572687886219516992935260560411005764670404721184301523481416335672724119965643982960587947214999278340235612966099736543580758998769599839781378511736039514253640392627064750917680036963931321944546594904891499368789282604936618839276436695908626837928559207924392616174811777819710574213996158505139064838377866289117504743493388910429398372619467360990549079050002634900555598250287747484700804841379359019781968319443025104745544332961857882270495031906667
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 1,276-digit prime (103 intermediate primes).

Certified number1,276-digit prime
Certificatedownload
Certificate chainshow step 5 of 103

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040652159 --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":1100000009040652159},"decimal":true,"detail":2}}'