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
127505
Term #1 of the Home prime · Base 2 sequence of
14106
Term #1 of the Home prime · Base 4 sequence of
14106
Term #1 of the Home prime · Base 7 sequence of
3650
Term #1 of the Home prime · Base 8 sequence of
25861
Term #1 of the Inverse home prime · Base 7 sequence of
8703
Term #1 of the Home prime · Base 12 sequence of
930
Term #1 of the Home prime · Base 16 sequence of
25861
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
38272
Term #2 of the Inverse home prime · Base 18 sequence of
20911
Term #3 of the Inverse home prime · Base 28 sequence of
213
Term #1 of the Conway climb · Base 2 sequence of
14106
Term #1 of the Conway climb · Base 4 sequence of
14106
Term #1 of the Conway climb · Base 7 sequence of
11680
Term #1 of the Conway climb · Base 8 sequence of
25861
Term #1 of the Conway climb · Base 12 sequence of
930
Term #1 of the Conway climb · Base 16 sequence of
25861
Term #1 of the Conway climb · Base 28 sequence of
5872
Term #1 of the Distinct-prime home prime · Base 2 sequence of
14106
Term #1 of the Distinct-prime home prime · Base 8 sequence of
25861
Term #1 of the Distinct-prime home prime · Base 16 sequence of
25861
Term #1 of the Second-class home prime · Base 2 sequence of
28212
Term #3 of the Second-class home prime · Base 3 sequence of
7506
Term #2 of the Second-class home prime · Base 8 sequence of
15176
Term #2 of the Second-class home prime · Base 16 sequence of
23656
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
25861
Term #1 of the Mid-divisor concatenation · Base 8 sequence of
25861
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
19129
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
25861
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '47407' --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":"47407"},"decimal":false,"detail":2}}'