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
185525
Term #2 of the Home prime · Base 3 sequence of
13389
Term #1 of the Home prime · Base 9 sequence of
20041
Term #1 of the Home prime · Base 10 sequence of
7195
Term #1 of the Inverse home prime · Base 2 sequence of
36491
Term #4 of the Inverse home prime · Base 7 sequence of
126
Term #1 of the Home prime · Base 12 sequence of
13270
Term #1 of the Home prime · Base 21 sequence of
15565
Term #1 of the Home prime · Base 24 sequence of
29901
Term #1 of the Home prime · Base 27 sequence of
24146
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
36690
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
36040
Term #2 of the Inverse home prime · Base 18 sequence of
14441
Term #2 of the Inverse home prime · Base 24 sequence of
3077
Term #2 of the Conway climb · Base 3 sequence of
13389
Term #1 of the Conway climb · Base 10 sequence of
7195
Term #1 of the Conway climb · Base 12 sequence of
13270
Term #1 of the Conway climb · Base 21 sequence of
15565
Term #1 of the Conway climb · Base 24 sequence of
29901
Term #1 of the Conway climb · Base 27 sequence of
24146
Term #2 of the Distinct-prime home prime · Base 3 sequence of
13389
Term #1 of the Distinct-prime home prime · Base 10 sequence of
7195
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
36491
Term #1 of the Second-class home prime · Base 3 sequence of
40082
Term #1 of the Second-class home prime · Base 10 sequence of
14390
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
27444
Term #2 of the Mid-divisor concatenation · Base 3 sequence of
13389
Term #1 of the Mid-divisor concatenation · Base 8 sequence of
23900
Term #3 of the Mid-divisor concatenation · Base 10 sequence of
3666
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
27444
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '51439' --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":"51439"},"decimal":false,"detail":2}}'