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.
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Term #1 of the Home prime · Base 7 sequence of
3377
Term #1 of the Inverse home prime · Base 3 sequence of
225
Term #1 of the Inverse home prime · Base 5 sequence of
815
Term #1 of the Inverse home prime · Base 7 sequence of
1079
Term #1 of the Inverse home prime · Base 9 sequence of
225
Term #1 of the Home prime · Base 19 sequence of
1199
Term #5 of the Aliquot variants · Infinitary · σ∞(n) − n sequence of
1032
Term #1 of the Inverse home prime · Base 13 sequence of
3443
Term #1 of the Inverse home prime · Base 25 sequence of
815
Term #1 of the Inverse home prime · Base 27 sequence of
453
Term #1 of the Inverse home prime · Base 31 sequence of
2489
Term #1 of the Conway climb · Base 7 sequence of
3377
Term #1 of the Conway climb · Base 19 sequence of
1199
Is factor of
From the command linefdb · curl
fdb
fdb number '4080' --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":"4080"},"decimal":false,"detail":2}}'