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
136885
Term #2 of the Home prime · Base 11 sequence of
1455
Term #2 of the Inverse home prime · Base 3 sequence of
18845
Term #2 of the Inverse home prime · Base 8 sequence of
1887
Term #1 of the Home prime · Base 12 sequence of
2950
Term #1 of the Home prime · Base 24 sequence of
28257
Term #1 of the Home prime · Base 26 sequence of
8786
Term #1 of the Home prime · Base 29 sequence of
1724
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
35600
Term #1 of the Inverse home prime · Base 12 sequence of
20827
Term #1 of the Inverse home prime · Base 18 sequence of
3611
Term #2 of the Conway climb · Base 11 sequence of
1455
Term #1 of the Conway climb · Base 12 sequence of
9440
Term #1 of the Conway climb · Base 24 sequence of
28257
Term #1 of the Conway climb · Base 26 sequence of
8786
Term #1 of the Conway climb · Base 29 sequence of
1724
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
33926
Term #2 of the Distinct-prime home prime, descending · Base 3 sequence of
18845
Term #2 of the Distinct-prime home prime, descending · Base 8 sequence of
1887
Term #10 of the Second-class home prime · Base 16 sequence of
20898
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
40194
Term #1 of the Mid-divisor concatenation · Base 8 sequence of
20097
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
40194
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '50891' --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":"50891"},"decimal":false,"detail":2}}'