factordbrpc · fdb
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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 #1100000009018793405 744 digits created 2026-07-29

Value

281681466531926231804643437774871094357593065814334707237347279278232815828828687237345695770499574132545549302335944205387750967681832591350207785790844453208631332590392156560869177410376666586022172378642107498644718647251803493483627702790202489418761295295617159006553913752239529215276830304371982586061842230694675797285137113210636404366942943226169213514706879460705580850980507432886171174794029082636298612863100290571879367510624494975332361934919664492806434338272732969917376963737440878621435821725842899953067080798997811657451903319454259434581076525235495550968795856063681990621336004529684562029906637411702906996868027440365472005977592630503632501650764138811606928331028238983697645760244324884171190279538297931716547397
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 1,024-digit prime (66 intermediate primes).

Certified number1,024-digit prime
Certificatedownload
Certificate chainshow step 20 of 66

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018793405 --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":1100000009018793405},"decimal":true,"detail":2}}'