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 #24 of the aliquot sequence of 6780 · 28 terms
Term #1 of the Inverse home prime · Base 2 sequence of 6748 · 51 terms
Term #1 of the Inverse home prime · Base 3 sequence of 13843 · 2 terms
Term #1 of the Home prime · Base 21 sequence of 9561 · 15 terms
Term #5 of the Aliquot variants · Bi-unitary · σ**(n) − n sequence of 14720 · 9 terms
Term #1 of the Inverse home prime · Base 17 sequence of 5029 · 4 terms
Term #1 of the Conway climb · Base 21 sequence of 9561 · 12 terms
Term #1 of the Distinct-prime home prime, descending · Base 3 sequence of 13843 · 3 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '30970' --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":"30970"},"decimal":false,"detail":2}}'