factordbrpc · fdb
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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 5 digits
↪
Term #1 of the aliquot sequence of 190355 · 2 terms
Term #2 of the Home prime · Base 3 sequence of 1781 · 3 terms
Term #1 of the Home prime · Base 5 sequence of 23931 · 2 terms
Term #1 of the Home prime · Base 7 sequence of 1485 · 2 terms
Term #1 of the Home prime · Base 20 sequence of 5341 · 2 terms
Term #1 of the Home prime · Base 22 sequence of 28345 · 2 terms
Term #2 of the Home prime · Base 27 sequence of 23797 · 3 terms
Term #1 of the Home prime · Base 28 sequence of 4142 · 2 terms
Term #1 of the Home prime · Base 30 sequence of 2470 · 2 terms
Term #1 of the Inverse home prime · Base 12 sequence of 5317 · 2 terms
Term #4 of the Conway climb · Base 3 sequence of 14463 · 5 terms
Term #2 of the Conway climb · Base 20 sequence of 8726 · 3 terms
Term #1 of the Conway climb · Base 22 sequence of 28345 · 2 terms
Term #2 of the Conway climb · Base 27 sequence of 23797 · 3 terms
Term #1 of the Conway climb · Base 28 sequence of 4142 · 2 terms
Term #1 of the Conway climb · Base 30 sequence of 2470 · 2 terms
Term #5 of the Distinct-prime home prime · Base 3 sequence of 7755 · 6 terms
Term #1 of the Second-class home prime · Base 3 sequence of 6592 · 2 terms
Term #2 of the Second-class home prime · Base 8 sequence of 51514 · 3 terms
Term #2 of the Second-class home prime · Base 16 sequence of 26356 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 30837 · 2 terms
Term #5 of the Mid-divisor concatenation · Base 3 sequence of 7878 · 6 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '58909' --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":"58909"},"decimal":false,"detail":2}}'