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 #1100000009066857889 739 digits created 2026-08-10

Value

1559393383673877933855093851937636352725328154167691960893643273990762558149038404329058637796213027462599418123609368302609416707755494321996184876331602572406748574204287790673475801350037840497227209081999606125758739910880404617911283705447481784829043176368410003229745371350940591818231810330181380702186714956123991865288511237806711101962949171053057525725029360559491255766033069353892890806803276359215929510741397124347227650097537085373852865238886868421586233556780877810282616909037050288567718612887388979220858044324813415146717383287236401803580953988288096147720104325134991875314956348051619503669498685702116935742706782318585187412114397097195109923168474896242257445449447179293998309555773573846593604879173460695509
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 88 of the certificate chain of a 1,727-digit prime (148 intermediate primes).

Certified number1,727-digit prime
Certificatedownload
Certificate chainshow step 88 of 148

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009066857889 --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":1100000009066857889},"decimal":true,"detail":2}}'