FF · Fully factored
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.
↪
Term #1 of the Home prime · Base 7 sequence of
5331
Term #1 of the Inverse home prime · Base 3 sequence of
6979
Term #1 of the Inverse home prime · Base 5 sequence of
1795
Term #1 of the Inverse home prime · Base 9 sequence of
6979
Term #2 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
7932
Term #1 of the Inverse home prime · Base 13 sequence of
1219
Term #1 of the Inverse home prime · Base 25 sequence of
1795
Term #1 of the Conway climb · Base 7 sequence of
5331
Term #1 of the Distinct-prime home prime, descending · Base 3 sequence of
6979
Is factor of
From the command linefdb · curl
fdb
fdb number '8980' --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":"8980"},"decimal":false,"detail":2}}'