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.

CF · Composite, factor known
id #1100000009182947901 58 digits created 2026-09-26
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Term #16 of the Inverse home prime · Base 31 sequence of 235 · 17 terms
Is factor of

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Paste anything - plain factors, a GMP-ECM run, a factor list. Every number found is checked for divisibility here; the ones that divide are submitted.

From the command linefdb · curl
fdb
fdb number '5916130335777549091028034751346184506032788995737907354031' --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"expr":"5916130335777549091028034751346184506032788995737907354031"},"decimal":false,"detail":2}}'