factordbrpc · fdb
Sign in

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.

P · Proven prime
below threshold 6 digits
↪
Term #1 of the aliquot sequence of 618505 · 2 terms
Term #1 of the Home prime · Base 6 sequence of 17610 · 2 terms
Term #1 of the Home prime · Base 7 sequence of 27013 · 2 terms
Term #1 of the Inverse home prime · Base 2 sequence of 50369 · 2 terms
Term #3 of the Inverse home prime · Base 5 sequence of 6161 · 4 terms
Term #2 of the Home prime · Base 12 sequence of 30423 · 3 terms
Term #1 of the Home prime · Base 14 sequence of 2043 · 2 terms
Term #1 of the Home prime · Base 28 sequence of 52615 · 2 terms
Term #1 of the Home prime · Base 35 sequence of 75914 · 2 terms
Term #1 of the Home prime · Base 36 sequence of 27002 · 2 terms
Term #1 of the Inverse home prime · Base 14 sequence of 19561 · 2 terms
Term #1 of the Inverse home prime · Base 23 sequence of 57551 · 2 terms
Term #1 of the Inverse home prime · Base 25 sequence of 31717 · 2 terms
Term #1 of the Conway climb · Base 6 sequence of 17610 · 2 terms
Term #1 of the Conway climb · Base 7 sequence of 27013 · 2 terms
Term #2 of the Conway climb · Base 12 sequence of 30423 · 3 terms
Term #2 of the Conway climb · Base 14 sequence of 264 · 3 terms
Term #1 of the Conway climb · Base 28 sequence of 52615 · 2 terms
Term #1 of the Conway climb · Base 35 sequence of 75914 · 2 terms
Term #1 of the Conway climb · Base 36 sequence of 27002 · 2 terms
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of 50369 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 75915 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 8 sequence of 24810 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 16 sequence of 24810 · 2 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '123707' --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":"123707"},"decimal":false,"detail":2}}'