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 3 digits
↪
Term #1 of the Home prime · Base 11 sequence of 201 · 31 terms
Term #2 of the Inverse home prime · Base 2 sequence of 106 · 127 terms
Term #2 of the Inverse home prime · Base 3 sequence of 218 · 33 terms
Term #2 of the Inverse home prime · Base 4 sequence of 106 · 80 terms
Term #1 of the Inverse home prime · Base 5 sequence of 85 · 22 terms
Term #1 of the Inverse home prime · Base 7 sequence of 183 · 4 terms
Term #1 of the Inverse home prime · Base 9 sequence of 329 · 19 terms
Term #2 of the Aliquot variants · Coreful · s#(n) − n sequence of 400 · 3 terms
Term #1 of the Inverse home prime · Base 25 sequence of 85 · 15 terms
Term #1 of the Conway climb · Base 5 sequence of 45 · 12 terms
Term #2 of the Conway climb · Base 9 sequence of 26 · 26 terms
Term #1 of the Conway climb · Base 11 sequence of 201 · 22 terms
Term #2 of the Distinct-prime home prime, descending · Base 2 sequence of 106 · 61 terms
Term #2 of the Distinct-prime home prime, descending · Base 3 sequence of 218 · 18 terms
Term #3 of the Mid-divisor concatenation · Base 3 sequence of 165 · 5 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '430' --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":"430"},"decimal":false,"detail":2}}'