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 #3 of the aliquot sequence of
1584
Term #1 of the Home prime · Base 11 sequence of
130
Term #1 of the Inverse home prime · Base 5 sequence of
655
Term #1 of the Home prime · Base 17 sequence of
1111
Term #1 of the Home prime · Base 21 sequence of
1351
Term #1 of the Home prime · Base 29 sequence of
2271
Term #1 of the Home prime · Base 31 sequence of
1191
Term #2 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
3252
Term #1 of the Inverse home prime · Base 22 sequence of
298
Term #1 of the Inverse home prime · Base 25 sequence of
655
Term #1 of the Inverse home prime · Base 29 sequence of
339
Term #1 of the Conway climb · Base 11 sequence of
130
Term #1 of the Conway climb · Base 17 sequence of
1111
Term #1 of the Conway climb · Base 21 sequence of
1351
Term #1 of the Conway climb · Base 29 sequence of
2271
Term #1 of the Conway climb · Base 31 sequence of
1191
Term #4 of the Mid-divisor concatenation · Base 3 sequence of
178
Is factor of
From the command linefdb · curl
fdb
fdb number '3280' --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":"3280"},"decimal":false,"detail":2}}'