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.
↪
Term #1 of the aliquot sequence of
259227
Term #1 of the Home prime · Base 2 sequence of
55929
Term #1 of the Home prime · Base 6 sequence of
63082
Term #1 of the Inverse home prime · Base 2 sequence of
88147
Term #1 of the Inverse home prime · Base 3 sequence of
83234
Term #1 of the Inverse home prime · Base 4 sequence of
26785
Term #1 of the Home prime · Base 14 sequence of
12357
Term #2 of the Home prime · Base 15 sequence of
43303
Term #2 of the Home prime · Base 28 sequence of
15709
Term #1 of the Home prime · Base 35 sequence of
78206
Term #1 of the Home prime · Base 36 sequence of
63082
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
89130
Term #1 of the Inverse home prime · Base 16 sequence of
26785
Term #1 of the Inverse home prime · Base 25 sequence of
11343
Term #1 of the Conway climb · Base 2 sequence of
55929
Term #6 of the Conway climb · Base 4 sequence of
47227
Term #1 of the Conway climb · Base 6 sequence of
63082
Term #2 of the Conway climb · Base 14 sequence of
18187
Term #2 of the Conway climb · Base 15 sequence of
43303
Term #2 of the Conway climb · Base 28 sequence of
15709
Term #1 of the Conway climb · Base 35 sequence of
78206
Term #1 of the Conway climb · Base 36 sequence of
63082
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
83234
Term #2 of the Distinct-prime home prime · Base 2 sequence of
42398
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of
88147
Term #4 of the Distinct-prime home prime, descending · Base 3 sequence of
35354
Term #2 of the Distinct-prime home prime, descending · Base 16 sequence of
19351
Term #2 of the Second-class home prime · Base 2 sequence of
84796
Term #8 of the Second-class home prime · Base 16 sequence of
13336
Term #3 of the Mid-divisor concatenation · Base 2 sequence of
34084
Term #3 of the Mid-divisor concatenation · Base 8 sequence of
18890
Term #1 of the Mid-divisor concatenation · Base 16 sequence of
59190
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '124853' --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":"124853"},"decimal":false,"detail":2}}'