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 #1100000009126645761 555 digits created 2026-09-01

Value

312648582714718686692055676855384273847186869494501879682666982349090468976085997742077172402088913916756905619678328509458722002395113028650163806140747895767223276428128282284947576724334728395527855892248470745703116599395730931409881883745396768506659868621020649426070106882767560261138361048265578681327818146703592293400355209849800809489716656611189061402100938531077953265166782218198041801070984496545240098373309829411655172882732127134900372706765459059191698401502983843828877075108704623484856888937635242712745355523019617591611796755229863
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 253 of the certificate chain of a 3,110-digit prime (313 intermediate primes).

Certified number3,110-digit prime
Certificatedownload
Certificate chainshow step 253 of 313

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009126645761 --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":1100000009126645761},"decimal":true,"detail":2}}'