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 #1100000009077839401 917 digits created 2026-08-12

Value

20392492574075984910569937565163620163614760845825123748972217720501152069834572954880639158015948097699581487861907007539448070663641198984721297463480509267373222679828393830315477111178150045632296438113341837967124975009619464776440046616238904717537799947660236967305482261095883043298919709364787582375836257719912711873664198759572091394871298167925096428718815757499430725778521463310643870794634132409016047118392223890060688908599611513470649271039237685554121436780543439518193130637149012402637114019933263050890226456781079430808079130707427320865609256739875233155819667933935772999369465859622610778614648182796909517690822047477595952569692003941851496979861040522593257561181628715259503923729521562010650540685567114148208491967035913883121243933632310345796297653976096045813034325249819729870786830719835458361755945170234824412949438753989348148829246079350835670452721578939668139276916625171759
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 81 of the certificate chain of a 2,023-digit prime (152 intermediate primes).

Certified number2,023-digit prime
Certificatedownload
Certificate chainshow step 81 of 152

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009077839401 --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":1100000009077839401},"decimal":true,"detail":2}}'