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
163089
Term #1 of the Home prime · Base 8 sequence of
13922
Term #1 of the Inverse home prime · Base 7 sequence of
17935
Term #1 of the Home prime · Base 12 sequence of
30867
Term #1 of the Home prime · Base 21 sequence of
20587
Term #1 of the Home prime · Base 29 sequence of
47438
Term #1 of the Home prime · Base 31 sequence of
6422
Term #1 of the Home prime · Base 32 sequence of
13922
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
36624
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
44388
Term #1 of the Inverse home prime · Base 12 sequence of
11275
Term #1 of the Inverse home prime · Base 18 sequence of
31889
Term #2 of the Inverse home prime · Base 20 sequence of
12427
Term #1 of the Inverse home prime · Base 22 sequence of
17731
Term #1 of the Conway climb · Base 8 sequence of
13922
Term #1 of the Conway climb · Base 12 sequence of
30867
Term #1 of the Conway climb · Base 21 sequence of
20587
Term #1 of the Conway climb · Base 29 sequence of
47438
Term #2 of the Conway climb · Base 32 sequence of
4693
Term #1 of the Distinct-prime home prime · Base 8 sequence of
13922
Term #1 of the Second-class home prime · Base 8 sequence of
27844
Term #2 of the Second-class home prime · Base 10 sequence of
33388
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
55688
Term #1 of the Mid-divisor concatenation · Base 8 sequence of
13922
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '72497' --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":"72497"},"decimal":false,"detail":2}}'