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 #1 of the Home prime · Base 6 sequence of 996 · 3 terms
Term #1 of the Inverse home prime · Base 2 sequence of 8833 · 4 terms
Term #1 of the Inverse home prime · Base 4 sequence of 8833 · 9 terms
Term #1 of the Inverse home prime · Base 15 sequence of 5395 · 14 terms
Term #1 of the Inverse home prime · Base 16 sequence of 8833 · 26 terms
Term #1 of the Conway climb · Base 6 sequence of 396 · 7 terms
Term #1 of the Conway climb · Base 18 sequence of 6723 · 2 terms
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 10125 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 13651 · 7 terms
Term #1 of the Mid-divisor concatenation · Base 8 sequence of 15948 · 3 terms
Term #5 of the Mid-divisor concatenation · Base 16 sequence of 65 · 8 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '18875' --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":"18875"},"decimal":false,"detail":2}}'