P · Proven prime
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 Home prime · Base 6 sequence of
1275
Term #2 of the Home prime · Base 9 sequence of
1003
Term #1 of the Inverse home prime · Base 8 sequence of
957
Term #1 of the Home prime · Base 12 sequence of
11021
Term #1 of the Home prime · Base 20 sequence of
5143
Term #1 of the Home prime · Base 28 sequence of
817
Term #1 of the Home prime · Base 33 sequence of
6877
Term #3 of the Home prime · Base 36 sequence of
3831
Term #2 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
5408
Term #1 of the Inverse home prime · Base 18 sequence of
14093
Term #1 of the Inverse home prime · Base 19 sequence of
1435
Term #2 of the Inverse home prime · Base 34 sequence of
4843
Term #4 of the Conway climb · Base 6 sequence of
1395
Term #2 of the Conway climb · Base 9 sequence of
1003
Term #1 of the Conway climb · Base 12 sequence of
11021
Term #1 of the Conway climb · Base 20 sequence of
5143
Term #1 of the Conway climb · Base 28 sequence of
817
Term #3 of the Conway climb · Base 36 sequence of
3831
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
8290
Term #1 of the Distinct-prime home prime, descending · Base 8 sequence of
957
Term #2 of the Second-class home prime · Base 8 sequence of
7736
Term #4 of the Mid-divisor concatenation · Base 3 sequence of
1467
Term #3 of the Mid-divisor concatenation · Base 8 sequence of
66
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
5278
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '14939' --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":"14939"},"decimal":false,"detail":2}}'