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.
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Term #1 of the aliquot sequence of
285205
Term #3 of the Home prime · Base 3 sequence of
5215
Term #1 of the Home prime · Base 4 sequence of
5313
Term #2 of the Home prime · Base 5 sequence of
2783
Term #1 of the Home prime · Base 7 sequence of
6213
Term #1 of the Home prime · Base 22 sequence of
14665
Term #1 of the Home prime · Base 27 sequence of
35362
Term #1 of the Home prime · Base 29 sequence of
16538
Term #1 of the Home prime · Base 30 sequence of
1122
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
37992
Term #2 of the Inverse home prime · Base 13 sequence of
2255
Term #1 of the Inverse home prime · Base 15 sequence of
7606
Term #1 of the Inverse home prime · Base 18 sequence of
15845
Term #1 of the Inverse home prime · Base 23 sequence of
14231
Term #1 of the Inverse home prime · Base 30 sequence of
32317
Term #1 of the Inverse home prime · Base 31 sequence of
4543
Term #3 of the Conway climb · Base 3 sequence of
5215
Term #3 of the Conway climb · Base 4 sequence of
850
Term #1 of the Conway climb · Base 5 sequence of
21519
Term #1 of the Conway climb · Base 7 sequence of
2475
Term #1 of the Conway climb · Base 22 sequence of
14665
Term #1 of the Conway climb · Base 27 sequence of
35362
Term #1 of the Conway climb · Base 29 sequence of
16538
Term #1 of the Conway climb · Base 30 sequence of
1122
Term #3 of the Distinct-prime home prime · Base 3 sequence of
5215
Term #2 of the Second-class home prime · Base 16 sequence of
38124
Term #4 of the Mid-divisor concatenation · Base 2 sequence of
13471
Term #5 of the Mid-divisor concatenation · Base 3 sequence of
3354
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '57047' --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":"57047"},"decimal":false,"detail":2}}'