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 #1100000009041853673 446 digits created 2026-08-03

Value

12536729540439276103807658497482782451892125053579736667746904981329227614974883331286102910464670785916886310481500879880915854457816777525895465220115138764049720210295209446176893861884049909116379903858753464939194702917789098203517690879159710353928229927026391058873006819640876210174823862352705954162118762046529896858489363815593662910556837910984266820464920346881631447605750207819370495587101234897685585674216599192826052051226862253
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 1,306-digit prime (109 intermediate primes).

Certified number1,306-digit prime
Certificatedownload
Certificate chainshow step 72 of 109

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041853673 --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":1100000009041853673},"decimal":true,"detail":2}}'