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 6 sequence of
50
Term #1 of the Inverse home prime · Base 3 sequence of
24
Term #1 of the Inverse home prime · Base 6 sequence of
85
Term #1 of the Inverse home prime · Base 8 sequence of
39
Term #1 of the Home prime · Base 18 sequence of
85
Term #1 of the Home prime · Base 20 sequence of
35
Term #2 of the Home prime · Base 28 sequence of
26
Term #1 of the Home prime · Base 30 sequence of
51
Term #1 of the Home prime · Base 32 sequence of
33
Term #1 of the Home prime · Base 34 sequence of
15
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
80
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
60
Term #1 of the Inverse home prime · Base 15 sequence of
14
Term #1 of the Inverse home prime · Base 21 sequence of
10
Term #1 of the Inverse home prime · Base 35 sequence of
6
Term #1 of the Conway climb · Base 15 sequence of
49
Term #1 of the Conway climb · Base 18 sequence of
85
Term #1 of the Conway climb · Base 20 sequence of
35
Term #1 of the Conway climb · Base 21 sequence of
25
Term #2 of the Conway climb · Base 28 sequence of
26
Term #1 of the Conway climb · Base 30 sequence of
51
Term #1 of the Conway climb · Base 32 sequence of
33
Term #1 of the Conway climb · Base 34 sequence of
15
Term #1 of the Conway climb · Base 35 sequence of
9
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
85
Term #1 of the Distinct-prime home prime, descending · Base 8 sequence of
39
Term #2 of the Second-class home prime · Base 16 sequence of
92
Term #1 of the Mid-divisor concatenation · Base 2 sequence of
66
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
66
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '107' --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":"107"},"decimal":false,"detail":2}}'