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 Home prime · Base 3 sequence of 7292 · 2 terms
Term #1 of the Home prime · Base 6 sequence of 7534 · 2 terms
Term #1 of the Home prime · Base 9 sequence of 12394 · 2 terms
Term #1 of the Inverse home prime · Base 2 sequence of 6105 · 2 terms
Term #1 of the Inverse home prime · Base 3 sequence of 5135 · 2 terms
Term #1 of the Inverse home prime · Base 10 sequence of 3667 · 2 terms
Term #1 of the Largest prime factor · largest prime² - 2 sequence of 139 · 35 terms
Term #3 of the Home prime · Base 12 sequence of 1003 · 4 terms
Term #1 of the Home prime · Base 18 sequence of 5469 · 2 terms
Term #1 of the Home prime · Base 20 sequence of 6638 · 2 terms
Term #2 of the Home prime · Base 21 sequence of 813 · 3 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 9480 · 2 terms
Term #1 of the Inverse home prime · Base 12 sequence of 17699 · 2 terms
Term #1 of the Inverse home prime · Base 18 sequence of 3245 · 2 terms
Term #1 of the Inverse home prime · Base 30 sequence of 18647 · 2 terms
Term #1 of the Conway climb · Base 3 sequence of 7292 · 2 terms
Term #1 of the Conway climb · Base 6 sequence of 2300 · 2 terms
Term #1 of the Conway climb · Base 9 sequence of 12394 · 2 terms
Term #2 of the Conway climb · Base 12 sequence of 893 · 3 terms
Term #1 of the Conway climb · Base 18 sequence of 5469 · 2 terms
Term #1 of the Conway climb · Base 20 sequence of 6638 · 2 terms
Term #2 of the Conway climb · Base 21 sequence of 813 · 3 terms
Term #2 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 7008 · 3 terms
Term #2 of the Distinct-prime home prime · Base 3 sequence of 7295 · 3 terms
Term #6 of the Distinct-prime home prime, descending · Base 2 sequence of 3589 · 7 terms
Term #1 of the Distinct-prime home prime, descending · Base 3 sequence of 5135 · 2 terms
Term #1 of the Distinct-prime home prime, descending · Base 10 sequence of 3667 · 2 terms
Term #1 of the Second-class home prime · Base 3 sequence of 14584 · 2 terms
Term #2 of the Second-class home prime · Base 8 sequence of 8528 · 3 terms
Term #2 of the Second-class home prime · Base 10 sequence of 10340 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 15966 · 2 terms
Term #2 of the Mid-divisor concatenation · Base 3 sequence of 7295 · 3 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '19319' --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":"19319"},"decimal":false,"detail":2}}'