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 #2 of the Home prime · Base 2 sequence of 1245 · 9 terms
Term #1 of the Home prime · Base 6 sequence of 10637 · 2 terms
Term #3 of the Home prime · Base 9 sequence of 866 · 22 terms
Term #2 of the Inverse home prime · Base 2 sequence of 2533 · 4 terms
Term #1 of the Inverse home prime · Base 4 sequence of 2891 · 3 terms
Term #1 of the Home prime · Base 14 sequence of 4585 · 4 terms
Term #1 of the Home prime · Base 18 sequence of 7118 · 13 terms
Term #1 of the Home prime · Base 36 sequence of 10637 · 7 terms
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of 8970 · 2 terms
Term #1 of the Inverse home prime · Base 14 sequence of 5435 · 4 terms
Term #1 of the Inverse home prime · Base 16 sequence of 2891 · 3 terms
Term #1 of the Inverse home prime · Base 20 sequence of 2283 · 14 terms
Term #1 of the Inverse home prime · Base 31 sequence of 982 · 16 terms
Term #4 of the Conway climb · Base 2 sequence of 469 · 9 terms
Term #1 of the Conway climb · Base 4 sequence of 7983 · 3 terms
Term #1 of the Conway climb · Base 6 sequence of 10637 · 2 terms
Term #3 of the Conway climb · Base 9 sequence of 866 · 12 terms
Term #1 of the Conway climb · Base 14 sequence of 4585 · 4 terms
Term #1 of the Conway climb · Base 18 sequence of 7118 · 13 terms
Term #1 of the Conway climb · Base 19 sequence of 976 · 16 terms
Term #1 of the Conway climb · Base 36 sequence of 10637 · 7 terms
Term #2 of the Distinct-prime home prime · Base 2 sequence of 1245 · 8 terms
Term #2 of the Distinct-prime home prime, descending · Base 2 sequence of 2533 · 4 terms
Term #1 of the Second-class home prime · Base 2 sequence of 7590 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 12418 · 4 terms
Term #4 of the Mid-divisor concatenation · Base 3 sequence of 2373 · 7 terms
Term #2 of the Mid-divisor concatenation · Base 10 sequence of 1485 · 4 terms
Term #3 of the Mid-divisor concatenation · Base 16 sequence of 1397 · 5 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '15223' --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":"15223"},"decimal":false,"detail":2}}'