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 #5 of the Home prime · Base 2 sequence of
108
Term #2 of the Home prime · Base 8 sequence of
2122
Term #3 of the Inverse home prime · Base 7 sequence of
18
Term #1 of the Inverse home prime · Base 10 sequence of
5105
Term #2 of the Home prime · Base 17 sequence of
286
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
10184
Term #1 of the Inverse home prime · Base 23 sequence of
399
Term #5 of the Conway climb · Base 2 sequence of
292
Term #1 of the Conway climb · Base 4 sequence of
8064
Term #2 of the Conway climb · Base 8 sequence of
2122
Term #2 of the Conway climb · Base 17 sequence of
286
Term #4 of the Distinct-prime home prime · Base 2 sequence of
1353
Term #2 of the Distinct-prime home prime · Base 8 sequence of
2122
Term #1 of the Distinct-prime home prime, descending · Base 10 sequence of
5105
Term #1 of the Second-class home prime · Base 8 sequence of
5844
Term #5 of the Mid-divisor concatenation · Base 2 sequence of
1404
Term #2 of the Mid-divisor concatenation · Base 8 sequence of
2122
Is factor of
From the command linefdb · curl
fdb
fdb number '10215' --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":"10215"},"decimal":false,"detail":2}}'