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.
↪
Term #1 of the Home prime · Base 2 sequence of
438
Term #1 of the Home prime · Base 8 sequence of
914
Term #1 of the Home prime · Base 14 sequence of
539
Term #2 of the Home prime · Base 20 sequence of
12
Term #1 of the Home prime · Base 21 sequence of
231
Term #1 of the Home prime · Base 22 sequence of
87
Term #1 of the Home prime · Base 24 sequence of
442
Term #1 of the Inverse home prime · Base 17 sequence of
20
Term #1 of the Inverse home prime · Base 22 sequence of
469
Term #2 of the Inverse home prime · Base 24 sequence of
215
Term #1 of the Inverse home prime · Base 34 sequence of
817
Term #1 of the Inverse home prime · Base 36 sequence of
205
Term #1 of the Conway climb · Base 2 sequence of
438
Term #1 of the Conway climb · Base 8 sequence of
914
Term #1 of the Conway climb · Base 14 sequence of
763
Term #2 of the Conway climb · Base 20 sequence of
12
Term #1 of the Conway climb · Base 21 sequence of
231
Term #1 of the Conway climb · Base 22 sequence of
87
Term #1 of the Conway climb · Base 24 sequence of
442
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
666
Term #1 of the Distinct-prime home prime · Base 2 sequence of
438
Term #1 of the Distinct-prime home prime · Base 8 sequence of
914
Term #1 of the Second-class home prime · Base 2 sequence of
876
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
803
Term #2 of the Mid-divisor concatenation · Base 8 sequence of
252
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '1481' --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":"1481"},"decimal":false,"detail":2}}'