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 #16 of the aliquot sequence of
360
Term #1 of the Inverse home prime · Base 3 sequence of
1490
Term #2 of the Inverse home prime · Base 6 sequence of
148
Term #1 of the Inverse home prime · Base 11 sequence of
1101
Term #1 of the Home prime · Base 17 sequence of
3679
Term #1 of the Home prime · Base 23 sequence of
2359
Term #1 of the Home prime · Base 33 sequence of
2319
Term #1 of the Aliquot variants · Bi-unitary · σ**(n) − n sequence of
3160
Term #1 of the Aliquot variants · Infinitary · σ∞(n) − n sequence of
3160
Term #1 of the Inverse home prime · Base 15 sequence of
1345
Term #1 of the Inverse home prime · Base 27 sequence of
2533
Term #1 of the Conway climb · Base 17 sequence of
3679
Term #1 of the Conway climb · Base 23 sequence of
2359
Term #1 of the Conway climb · Base 33 sequence of
2319
Term #4 of the Distinct-prime home prime, descending · Base 3 sequence of
321
Term #2 of the Mid-divisor concatenation · Base 3 sequence of
2252
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
1600
Is factor of
From the command linefdb · curl
fdb
fdb number '4040' --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":"4040"},"decimal":false,"detail":2}}'