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 #1100000009078966668 399 digits created 2026-08-12

Value

131257493159534165873537271292382034780640941685840889196885634272127461247306867088250294437271255721512603881514240578203266667435567977810224304788397628892104712167658350522220905611044691721821913646372033835886042364537050303429153313236606794570335027778877160826635324382654888794495446823811267642143635744726483239560542570360914673956036701568021583839496079501957872285850737353030543043
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 124 of the certificate chain of a 2,038-digit prime (151 intermediate primes).

Certified number2,038-digit prime
Certificatedownload
Certificate chainshow step 124 of 151

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078966668 --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":1100000009078966668},"decimal":true,"detail":2}}'