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 #1 of the Home prime · Base 2 sequence of
18611
Term #1 of the Home prime · Base 3 sequence of
7804
Term #1 of the Home prime · Base 8 sequence of
18611
Term #2 of the Inverse home prime · Base 2 sequence of
8853
Term #2 of the Inverse home prime · Base 4 sequence of
6377
Term #1 of the Inverse home prime · Base 5 sequence of
7778
Term #2 of the Home prime · Base 12 sequence of
2746
Term #1 of the Home prime · Base 14 sequence of
1673
Term #1 of the Home prime · Base 15 sequence of
5335
Term #1 of the Home prime · Base 18 sequence of
5853
Term #1 of the Home prime · Base 21 sequence of
172
Term #1 of the Inverse home prime · Base 32 sequence of
13961
Term #1 of the Conway climb · Base 2 sequence of
18611
Term #1 of the Conway climb · Base 3 sequence of
7804
Term #1 of the Conway climb · Base 8 sequence of
18611
Term #2 of the Conway climb · Base 12 sequence of
2746
Term #1 of the Conway climb · Base 14 sequence of
1673
Term #1 of the Conway climb · Base 15 sequence of
5335
Term #1 of the Conway climb · Base 18 sequence of
5853
Term #1 of the Conway climb · Base 21 sequence of
172
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
14583
Term #1 of the Distinct-prime home prime · Base 2 sequence of
18611
Term #1 of the Distinct-prime home prime · Base 8 sequence of
18611
Term #2 of the Distinct-prime home prime, descending · Base 2 sequence of
8853
Term #5 of the Second-class home prime · Base 3 sequence of
12870
Term #2 of the Second-class home prime · Base 8 sequence of
10824
Term #2 of the Second-class home prime · Base 16 sequence of
14668
Term #2 of the Mid-divisor concatenation · Base 2 sequence of
12888
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
15608
Term #2 of the Mid-divisor concatenation · Base 8 sequence of
6444
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '19447' --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":"19447"},"decimal":false,"detail":2}}'