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 #1100000009042948872 374 digits created 2026-08-03

Value

35555664249804220286636872068109823090051889873097707172616861031523919958918339920289132293477809563009647784710879129703427510578287904536624376402664872558097356914484180499413299678070235750436270000347352376745418563335557903755931385709953572053711025749438988190717913963897875210244523040671096746340882801234680091870425855575649429171377293937487040733396633410251
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 87 of the certificate chain of a 1,339-digit prime (116 intermediate primes).

Certified number1,339-digit prime
Certificatedownload
Certificate chainshow step 87 of 116

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042948872 --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":1100000009042948872},"decimal":true,"detail":2}}'