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 #1100000009019844399 419 digits created 2026-07-30

Value

25817559643791099937261443869355621273898472893531036891496721005784503633253519195174072766727420529780970541247940696397700075522112248691303388426021308770840010105294277011070213171469949823435214781496470717423700412668900756822223841017174565492618104911705134600386282168424130492184044993716849901356430652346853248510264490595795739251552118091382905272174162311013624683606427806253069113948345099744289279601
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 1,123-digit prime (98 intermediate primes).

Certified number1,123-digit prime
Certificatedownload
Certificate chainshow step 63 of 98

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009019844399 --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":1100000009019844399},"decimal":true,"detail":2}}'