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 #13 of the aliquot sequence of
8004
Term #1 of the Home prime · Base 9 sequence of
4377
Term #1 of the Inverse home prime · Base 7 sequence of
2586
Term #1 of the Home prime · Base 35 sequence of
5389
Term #1 of the Inverse home prime · Base 15 sequence of
9863
Term #1 of the Inverse home prime · Base 23 sequence of
4595
Term #1 of the Conway climb · Base 9 sequence of
4377
Term #1 of the Conway climb · Base 35 sequence of
5389
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
13131
Is factor of
From the command linefdb · curl
fdb
fdb number '21142' --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":"21142"},"decimal":false,"detail":2}}'