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
528005
Term #3 of the Home prime · Base 6 sequence of
2565
Term #2 of the Inverse home prime · Base 5 sequence of
15502
Term #1 of the Inverse home prime · Base 7 sequence of
66005
Term #1 of the Inverse home prime · Base 11 sequence of
22673
Term #1 of the Home prime · Base 12 sequence of
12139
Term #1 of the Home prime · Base 15 sequence of
8714
Term #1 of the Home prime · Base 20 sequence of
20891
Term #2 of the Home prime · Base 24 sequence of
25787
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
61704
Term #2 of the Conway climb · Base 6 sequence of
28063
Term #1 of the Conway climb · Base 12 sequence of
12139
Term #1 of the Conway climb · Base 15 sequence of
8714
Term #1 of the Conway climb · Base 20 sequence of
20891
Term #2 of the Conway climb · Base 24 sequence of
25787
Term #2 of the Second-class home prime · Base 16 sequence of
82580
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
90864
Term #1 of the Mid-divisor concatenation · Base 10 sequence of
63735
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '105607' --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":"105607"},"decimal":false,"detail":2}}'