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 149439 · 2 terms
Term #1 of the Home prime · Base 10 sequence of 10405 · 2 terms
Term #1 of the Inverse home prime · Base 2 sequence of 27659 · 2 terms
Term #1 of the Home prime · Base 12 sequence of 14162 · 2 terms
Term #1 of the Home prime · Base 19 sequence of 7469 · 2 terms
Term #1 of the Home prime · Base 21 sequence of 2795 · 2 terms
Term #1 of the Home prime · Base 22 sequence of 31351 · 2 terms
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of 51088 · 2 terms
Term #1 of the Inverse home prime · Base 19 sequence of 5482 · 2 terms
Term #1 of the Inverse home prime · Base 22 sequence of 9737 · 2 terms
Term #1 of the Inverse home prime · Base 26 sequence of 6009 · 2 terms
Term #1 of the Inverse home prime · Base 32 sequence of 27659 · 2 terms
Term #1 of the Conway climb · Base 10 sequence of 10405 · 2 terms
Term #1 of the Conway climb · Base 12 sequence of 14162 · 2 terms
Term #1 of the Conway climb · Base 19 sequence of 7469 · 2 terms
Term #1 of the Conway climb · Base 21 sequence of 2795 · 2 terms
Term #1 of the Conway climb · Base 22 sequence of 31351 · 2 terms
Term #1 of the Distinct-prime home prime · Base 10 sequence of 10405 · 2 terms
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of 27659 · 2 terms
Term #1 of the Second-class home prime · Base 10 sequence of 20810 · 2 terms
Term #2 of the Second-class home prime · Base 16 sequence of 44176 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 44050 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 10 sequence of 10405 · 2 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '52081' --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":"52081"},"decimal":false,"detail":2}}'