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
152405
Term #1 of the Home prime · Base 2 sequence of
32961
Term #1 of the Home prime · Base 4 sequence of
32961
Term #1 of the Inverse home prime · Base 8 sequence of
22551
Term #2 of the Home prime · Base 20 sequence of
14919
Term #2 of the Home prime · Base 22 sequence of
1965
Term #1 of the Home prime · Base 26 sequence of
22233
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
31590
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
48040
Term #1 of the Inverse home prime · Base 12 sequence of
35077
Term #1 of the Inverse home prime · Base 32 sequence of
20669
Term #1 of the Conway climb · Base 2 sequence of
32961
Term #1 of the Conway climb · Base 4 sequence of
32961
Term #2 of the Conway climb · Base 20 sequence of
14919
Term #2 of the Conway climb · Base 22 sequence of
1965
Term #1 of the Conway climb · Base 26 sequence of
22233
Term #1 of the Conway climb · Base 30 sequence of
47296
Term #1 of the Distinct-prime home prime · Base 2 sequence of
32961
Term #1 of the Distinct-prime home prime, descending · Base 8 sequence of
22551
Term #2 of the Second-class home prime · Base 3 sequence of
36084
Term #3 of the Mid-divisor concatenation · Base 2 sequence of
12288
Term #6 of the Mid-divisor concatenation · Base 3 sequence of
2373
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
8340
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
54990
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '60139' --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":"60139"},"decimal":false,"detail":2}}'