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 aliquot sequence of
105715
Term #2 of the Home prime · Base 6 sequence of
7114
Term #1 of the Home prime · Base 8 sequence of
6437
Term #1 of the Inverse home prime · Base 2 sequence of
17173
Term #1 of the Inverse home prime · Base 4 sequence of
17173
Term #3 of the Inverse home prime · Base 6 sequence of
1643
Term #1 of the Inverse home prime · Base 8 sequence of
3895
Term #1 of the Home prime · Base 18 sequence of
2937
Term #1 of the Home prime · Base 22 sequence of
14491
Term #1 of the Home prime · Base 26 sequence of
5983
Term #1 of the Home prime · Base 30 sequence of
10327
Term #1 of the Inverse home prime · Base 16 sequence of
17173
Term #1 of the Inverse home prime · Base 24 sequence of
4405
Term #3 of the Inverse home prime · Base 36 sequence of
1643
Term #1 of the Conway climb · Base 6 sequence of
2992
Term #1 of the Conway climb · Base 8 sequence of
6437
Term #1 of the Conway climb · Base 16 sequence of
3925
Term #1 of the Conway climb · Base 18 sequence of
2937
Term #1 of the Conway climb · Base 22 sequence of
14491
Term #1 of the Conway climb · Base 26 sequence of
5983
Term #1 of the Conway climb · Base 30 sequence of
10327
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
11272
Term #1 of the Distinct-prime home prime · Base 8 sequence of
6437
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
17173
Term #1 of the Distinct-prime home prime, descending · Base 8 sequence of
3895
Term #1 of the Distinct-prime home prime, descending · Base 16 sequence of
17173
Term #3 of the Second-class home prime · Base 8 sequence of
4732
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
12874
Term #3 of the Mid-divisor concatenation · Base 8 sequence of
3240
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
3129
Term #2 of the Mid-divisor concatenation · Base 16 sequence of
3700
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '21149' --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":"21149"},"decimal":false,"detail":2}}'