P · Proven prime
Enter a value, an expression, or a term with a variable like 10^n+1 to list a range.
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See the expression syntax & functions reference.
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Term #2 of the Home prime · Base 2 sequence of
840
Term #1 of the Home prime · Base 4 sequence of
8817
Term #1 of the Home prime · Base 6 sequence of
10681
Term #2 of the Home prime · Base 8 sequence of
1921
Term #2 of the Home prime · Base 9 sequence of
1203
Term #1 of the Inverse home prime · Base 2 sequence of
7337
Term #1 of the Inverse home prime · Base 3 sequence of
4504
Term #2 of the Home prime · Base 16 sequence of
452
Term #1 of the Home prime · Base 22 sequence of
6913
Term #1 of the Home prime · Base 28 sequence of
6289
Term #1 of the Home prime · Base 34 sequence of
2587
Term #1 of the Home prime · Base 36 sequence of
10681
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
9636
Term #1 of the Inverse home prime · Base 20 sequence of
5327
Term #2 of the Conway climb · Base 2 sequence of
2068
Term #1 of the Conway climb · Base 4 sequence of
6903
Term #1 of the Conway climb · Base 6 sequence of
10681
Term #2 of the Conway climb · Base 8 sequence of
1921
Term #2 of the Conway climb · Base 9 sequence of
1203
Term #2 of the Conway climb · Base 16 sequence of
452
Term #1 of the Conway climb · Base 22 sequence of
6913
Term #1 of the Conway climb · Base 28 sequence of
6289
Term #2 of the Conway climb · Base 34 sequence of
768
Term #1 of the Conway climb · Base 36 sequence of
10681
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
9554
Term #2 of the Distinct-prime home prime · Base 2 sequence of
4042
Term #2 of the Distinct-prime home prime · Base 8 sequence of
1921
Term #1 of the Distinct-prime home prime · Base 16 sequence of
8817
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
7337
Term #1 of the Second-class home prime · Base 2 sequence of
8850
Term #4 of the Second-class home prime · Base 8 sequence of
3276
Term #3 of the Mid-divisor concatenation · Base 2 sequence of
4988
Term #2 of the Mid-divisor concatenation · Base 3 sequence of
9299
Term #2 of the Mid-divisor concatenation · Base 8 sequence of
1921
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
3405
Term #2 of the Mid-divisor concatenation · Base 16 sequence of
2492
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '15227' --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":"15227"},"decimal":false,"detail":2}}'