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 Home prime · Base 12 sequence of
217
Term #1 of the Home prime · Base 14 sequence of
295
Term #1 of the Home prime · Base 18 sequence of
117
Term #1 of the Home prime · Base 19 sequence of
634
Term #1 of the Home prime · Base 20 sequence of
418
Term #1 of the Home prime · Base 21 sequence of
314
Term #1 of the Home prime · Base 22 sequence of
30
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of
690
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of
760
Term #2 of the Inverse home prime · Base 17 sequence of
21
Term #1 of the Inverse home prime · Base 22 sequence of
235
Term #1 of the Inverse home prime · Base 24 sequence of
301
Term #1 of the Inverse home prime · Base 28 sequence of
111
Term #1 of the Conway climb · Base 12 sequence of
217
Term #1 of the Conway climb · Base 14 sequence of
295
Term #1 of the Conway climb · Base 18 sequence of
201
Term #1 of the Conway climb · Base 19 sequence of
634
Term #1 of the Conway climb · Base 20 sequence of
418
Term #1 of the Conway climb · Base 21 sequence of
314
Term #1 of the Conway climb · Base 22 sequence of
30
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of
711
Term #2 of the Second-class home prime · Base 3 sequence of
396
Term #1 of the Mid-divisor concatenation · Base 3 sequence of
804
Is factor of
Primality
Verified directlyproven prime
Checked deterministically (below 300 digits).
From the command linefdb · curl
fdb
fdb number '1039' --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":"1039"},"decimal":false,"detail":2}}'