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
65079
Term #1 of the Home prime · Base 2 sequence of
19378
Term #1 of the Home prime · Base 4 sequence of
19378
Term #1 of the Inverse home prime · Base 2 sequence of
29459
Term #2 of the Inverse home prime · Base 5 sequence of
1724
Term #2 of the Home prime · Base 22 sequence of
20486
Term #1 of the Home prime · Base 23 sequence of
4521
Term #1 of the Home prime · Base 24 sequence of
29857
Term #1 of the Home prime · Base 30 sequence of
7379
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
23544
Term #1 of the Inverse home prime · Base 25 sequence of
10787
Term #1 of the Inverse home prime · Base 35 sequence of
2426
Term #1 of the Conway climb · Base 2 sequence of
15664
Term #1 of the Conway climb · Base 4 sequence of
19378
Term #2 of the Conway climb · Base 7 sequence of
12761
Term #2 of the Conway climb · Base 22 sequence of
20486
Term #1 of the Conway climb · Base 23 sequence of
4521
Term #1 of the Conway climb · Base 24 sequence of
29857
Term #1 of the Conway climb · Base 30 sequence of
7379
Term #1 of the Distinct-prime home prime · Base 2 sequence of
19378
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
29459
Term #1 of the Second-class home prime · Base 2 sequence of
38756
Term #6 of the Second-class home prime · Base 3 sequence of
2208
Term #2 of the Second-class home prime · Base 10 sequence of
38950
Term #2 of the Second-class home prime · Base 16 sequence of
14274
Term #7 of the Mid-divisor concatenation · Base 2 sequence of
5272
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
30450
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
19194
Term #4 of the Mid-divisor concatenation · Base 16 sequence of
16166
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '42457' --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":"42457"},"decimal":false,"detail":2}}'