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 #1100000009070811177 313 digits created 2026-08-10

Value

2171406947493609627796770863696678558531044395661477769386452800579630888359065790369606155317765635788145467513450865358712841151837846182341699635841758630555539811867251078903859392396440897575293059772398189958973645382612118335329620733244044698147862897326394162551044701551333024216884657218670489695384537
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 120 of the certificate chain of a 1,778-digit prime (144 intermediate primes).

Certified number1,778-digit prime
Certificatedownload
Certificate chainshow step 120 of 144

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009070811177 --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":1100000009070811177},"decimal":true,"detail":2}}'