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.

FF · Fully factored
below threshold 5 digits
↪
Term #13 of the aliquot sequence of 1476 · 1,326 terms
Term #1 of the Home prime · Base 11 sequence of 44899 · 16 terms
Term #2 of the Aliquot variants · Coreful · s#(n) − n sequence of 63432 · 3 terms
Term #53 of the Aliquot variants · Bi-unitary · σ**(n) − n sequence of 432 · 55 terms
Term #31 of the Aliquot variants · Infinitary · σ∞(n) − n sequence of 246 · 33 terms
Term #1 of the Inverse home prime · Base 31 sequence of 58811 · 9 terms
Term #1 of the Conway climb · Base 11 sequence of 44899 · 9 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '79290' --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":"79290"},"decimal":false,"detail":2}}'