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 4 digits
↪
Term #1 of the Inverse home prime · Base 6 sequence of 1247 · 5 terms
Term #1 of the Inverse home prime · Base 10 sequence of 1099 · 4 terms
Term #1 of the Home prime · Base 17 sequence of 455 · 22 terms
Term #1 of the Home prime · Base 24 sequence of 578 · 3 terms
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of 972 · 2 terms
Term #1 of the Inverse home prime · Base 12 sequence of 655 · 3 terms
Term #1 of the Inverse home prime · Base 36 sequence of 1247 · 5 terms
Term #1 of the Conway climb · Base 9 sequence of 338 · 19 terms
Term #1 of the Conway climb · Base 17 sequence of 455 · 5 terms
Term #1 of the Conway climb · Base 25 sequence of 338 · 12 terms
Term #1 of the Conway climb · Base 27 sequence of 176 · 10 terms
Term #1 of the Distinct-prime home prime, descending · Base 10 sequence of 1099 · 4 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 984 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 3 sequence of 722 · 7 terms
Term #1 of the Mid-divisor concatenation · Base 8 sequence of 984 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 16 sequence of 246 · 12 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '1577' --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":"1577"},"decimal":false,"detail":2}}'