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 #1100000009084386919 872 digits created 2026-08-15

Value

43573471491153477752382557189026263290107935799492987358116352420998181964308445106140478876090824502105358433775074787791462652318340111699114018680102987591578719448112333020381417290917219247594516726848410930473487102813193347096949500207333265275106836485908155626281405209873876250157769476571885689711795061410042336147793986815991863893433883739397956834499004860411157952522501061322410251419729171795234960700384801990631303963158320324425388236962558771942159170266159373434187033870758041601433299006436127600146228993134236111141534041270102847802605116459014328745387933289886162932919916809747229085041526411980427744699961741160716244941669767113008923088061294011144478467631715954199535490057249029613253863122643015917064795148175982546862077607480341265068010805784721126401631871182485278317056754240990350233317184064304090853785645591207408073018979
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 93 of the certificate chain of a 1,956-digit prime (156 intermediate primes).

Certified number1,956-digit prime
Certificatedownload
Certificate chainshow step 93 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084386919 --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":1100000009084386919},"decimal":true,"detail":2}}'