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 #1100000009055593915 431 digits created 2026-08-08

Value

81448699032336037678328428790208688539318944684542507543615672819013323194490952684173853598510132424817173513855640289520997549554417213257332958047606238419145849064180423162339991012302662574142648986182335250856206609406114489450557821102893237112183106411643899856280314156909793097642739395816616639225515945902623540697057805259874681318228678803810893281709350955747174551962228644737947101260632609520848627982188906962809
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 1,644-digit prime (131 intermediate primes).

Certified number1,644-digit prime
Certificatedownload
Certificate chainshow step 99 of 131

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055593915 --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":1100000009055593915},"decimal":true,"detail":2}}'