P · Proven prime
Enter a value, an expression, or a term with a variable like 10^n+1 to list a range.
Switch to Database id to look a number up by its stored id.
Reading never stores anything; use Create to add a number to the database.
See the expression syntax & functions reference.
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Term #1 of the Home prime · Base 2 sequence of
2387
Term #1 of the Home prime · Base 4 sequence of
1143
Term #1 of the Home prime · Base 8 sequence of
2681
Term #1 of the Home prime · Base 10 sequence of
2901
Term #4 of the Inverse home prime · Base 2 sequence of
129
Term #1 of the Inverse home prime · Base 4 sequence of
1647
Term #1 of the Inverse home prime · Base 5 sequence of
558
Term #2 of the Inverse home prime · Base 8 sequence of
1865
Term #1 of the Home prime · Base 12 sequence of
474
Term #1 of the Home prime · Base 23 sequence of
847
Term #1 of the Home prime · Base 26 sequence of
2935
Term #1 of the Home prime · Base 28 sequence of
235
Term #1 of the Home prime · Base 34 sequence of
1497
Term #1 of the Home prime · Base 36 sequence of
237
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
3954
Term #1 of the Inverse home prime · Base 14 sequence of
1415
Term #1 of the Conway climb · Base 2 sequence of
2387
Term #2 of the Conway climb · Base 4 sequence of
555
Term #1 of the Conway climb · Base 8 sequence of
2681
Term #1 of the Conway climb · Base 10 sequence of
2901
Term #1 of the Conway climb · Base 12 sequence of
474
Term #1 of the Conway climb · Base 26 sequence of
2935
Term #1 of the Conway climb · Base 28 sequence of
235
Term #1 of the Conway climb · Base 34 sequence of
1497
Term #1 of the Conway climb · Base 36 sequence of
63
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
1488
Term #1 of the Distinct-prime home prime · Base 2 sequence of
2387
Term #1 of the Distinct-prime home prime · Base 8 sequence of
2681
Term #1 of the Distinct-prime home prime · Base 10 sequence of
2901
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
2973
Term #2 of the Second-class home prime · Base 2 sequence of
3870
Term #2 of the Second-class home prime · Base 3 sequence of
3450
Term #2 of the Second-class home prime · Base 8 sequence of
2616
Term #2 of the Mid-divisor concatenation · Base 2 sequence of
2337
Term #3 of the Mid-divisor concatenation · Base 3 sequence of
1443
Term #2 of the Mid-divisor concatenation · Base 8 sequence of
2337
Term #2 of the Mid-divisor concatenation · Base 10 sequence of
1226
Term #4 of the Mid-divisor concatenation · Base 16 sequence of
20
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '3967' --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":"3967"},"decimal":false,"detail":2}}'