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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 #1100000009053030056 1,528 digits created 2026-08-07

Value

1665363767892423216739019955029905792608551098189207575612480927247192110778752940889143740581661943999711057872042131099914827589202414892841466769604016323749577006732359373001817153847170752548925173955022411117682334378326035583482247758788136319901971426099637916028195258755856893786274495065621449023575664415277344569548682849104478480766339931477445406047416509650248017937674820480328913719781564374527394396546846509595548526874481156900925656472965187562624227635931918346095957789781384251557696608816822442560101422368443215795040602061496279908023433813820759031691684377967641500505350459302847071250313080129603395201490762297315140408641728749858692463038433392972085847570764277797015510975653345753348183805899297408757605547720495619998176922274294817084461088372156301570753803352666875884957769396982218054505962279202313034191974103386997354610436163013471543859062729366796853025548230080862297847739215573865138761687397695266390552928139035567918504915533695880556875540824882075619699291470766693274655223579607804375593203031103198556462649050833707015790114165827339424652168173793718804336893749098324562140838700643535624293093254417921828513721583041295997863640466658068913573250942149378750798429642820178552136736133397658935790653050013946141524951402593518122148584393625982023226658480694953398933079791499372776972988969826193062015613556444834970654058122451607558698097945321459269402103645227401372511271572559948397550963134544922449403060093792371166037447268316575040410607811739379
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 100 of the certificate chain of a 2,848-digit prime (207 intermediate primes).

Certified number2,848-digit prime
Certificatedownload
Certificate chainshow step 100 of 207

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053030056 --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":1100000009053030056},"decimal":true,"detail":2}}'