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 71885 · 2 terms
Term #1 of the Home prime · Base 2 sequence of 7244 · 2 terms
Term #1 of the Home prime · Base 3 sequence of 3789 · 2 terms
Term #1 of the Home prime · Base 4 sequence of 9055 · 2 terms
Term #1 of the Home prime · Base 6 sequence of 490 · 2 terms
Term #2 of the Home prime · Base 8 sequence of 806 · 3 terms
Term #1 of the Home prime · Base 9 sequence of 3789 · 2 terms
Term #1 of the Inverse home prime · Base 6 sequence of 833 · 2 terms
Term #1 of the Home prime · Base 16 sequence of 665 · 2 terms
Term #2 of the Home prime · Base 21 sequence of 697 · 3 terms
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of 13284 · 2 terms
Term #1 of the Inverse home prime · Base 22 sequence of 5065 · 2 terms
Term #1 of the Inverse home prime · Base 31 sequence of 1438 · 2 terms
Term #2 of the Inverse home prime · Base 36 sequence of 115 · 3 terms
Term #1 of the Conway climb · Base 2 sequence of 7244 · 2 terms
Term #1 of the Conway climb · Base 3 sequence of 11367 · 2 terms
Term #1 of the Conway climb · Base 4 sequence of 9055 · 2 terms
Term #1 of the Conway climb · Base 6 sequence of 2666 · 2 terms
Term #2 of the Conway climb · Base 8 sequence of 806 · 3 terms
Term #1 of the Conway climb · Base 9 sequence of 11367 · 2 terms
Term #1 of the Conway climb · Base 16 sequence of 665 · 2 terms
Term #2 of the Conway climb · Base 21 sequence of 697 · 3 terms
Term #1 of the Distinct-prime home prime · Base 2 sequence of 7870 · 2 terms
Term #2 of the Distinct-prime home prime · Base 8 sequence of 806 · 3 terms
Term #1 of the Distinct-prime home prime · Base 16 sequence of 665 · 2 terms
Term #1 of the Second-class home prime · Base 2 sequence of 14488 · 2 terms
Term #1 of the Second-class home prime · Base 3 sequence of 7578 · 2 terms
Term #2 of the Second-class home prime · Base 8 sequence of 7254 · 3 terms
Term #1 of the Second-class home prime · Base 16 sequence of 1330 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 16527 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 3 sequence of 12630 · 2 terms
Term #2 of the Mid-divisor concatenation · Base 8 sequence of 1726 · 3 terms
Term #2 of the Mid-divisor concatenation · Base 16 sequence of 1726 · 3 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '22291' --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":"22291"},"decimal":false,"detail":2}}'