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 aliquot sequence of
269905
Term #1 of the Home prime · Base 3 sequence of
18537
Term #1 of the Inverse home prime · Base 11 sequence of
27587
Term #1 of the Home prime · Base 12 sequence of
3465
Term #1 of the Home prime · Base 21 sequence of
14357
Term #1 of the Home prime · Base 28 sequence of
7053
Term #1 of the Home prime · Base 29 sequence of
38858
Term #1 of the Home prime · Base 30 sequence of
28414
Term #1 of the Home prime · Base 32 sequence of
5342
Term #2 of the Inverse home prime · Base 12 sequence of
26045
Term #1 of the Inverse home prime · Base 14 sequence of
58643
Term #1 of the Inverse home prime · Base 15 sequence of
9094
Term #1 of the Inverse home prime · Base 30 sequence of
38641
Term #1 of the Conway climb · Base 3 sequence of
18537
Term #1 of the Conway climb · Base 12 sequence of
10395
Term #1 of the Conway climb · Base 28 sequence of
7053
Term #1 of the Conway climb · Base 29 sequence of
38858
Term #1 of the Conway climb · Base 30 sequence of
28414
Term #1 of the Conway climb · Base 32 sequence of
5342
Term #2 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
12168
Term #1 of the Distinct-prime home prime · Base 3 sequence of
18537
Term #2 of the Second-class home prime · Base 2 sequence of
63616
Term #1 of the Second-class home prime · Base 3 sequence of
37074
Term #2 of the Second-class home prime · Base 16 sequence of
62586
Term #3 of the Mid-divisor concatenation · Base 2 sequence of
24800
Term #1 of the Mid-divisor concatenation · Base 8 sequence of
42736
Term #3 of the Mid-divisor concatenation · Base 16 sequence of
24800
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '68207' --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":"68207"},"decimal":false,"detail":2}}'