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 aliquot sequence of
468985
Term #1 of the Home prime · Base 13 sequence of
1885
Term #1 of the Home prime · Base 15 sequence of
87562
Term #1 of the Home prime · Base 22 sequence of
85891
Term #1 of the Home prime · Base 30 sequence of
7205
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
96648
Term #1 of the Inverse home prime · Base 14 sequence of
48035
Term #1 of the Inverse home prime · Base 28 sequence of
98401
Term #1 of the Conway climb · Base 13 sequence of
1885
Term #1 of the Conway climb · Base 15 sequence of
87562
Term #1 of the Conway climb · Base 22 sequence of
85891
Term #1 of the Conway climb · Base 30 sequence of
7205
Term #2 of the Second-class home prime · Base 10 sequence of
24570
Term #3 of the Second-class home prime · Base 16 sequence of
10264
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
91227
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '145031' --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":"145031"},"decimal":false,"detail":2}}'