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 241835 · 2 terms
Term #1 of the Home prime · Base 5 sequence of 37559 · 2 terms
Term #1 of the Home prime · Base 8 sequence of 4372 · 2 terms
Term #1 of the Home prime · Base 11 sequence of 2795 · 2 terms
Term #1 of the Home prime · Base 12 sequence of 37839 · 2 terms
Term #2 of the Home prime · Base 24 sequence of 1714 · 3 terms
Term #1 of the Home prime · Base 33 sequence of 3076 · 2 terms
Term #1 of the Inverse home prime · Base 23 sequence of 6506 · 2 terms
Term #1 of the Conway climb · Base 8 sequence of 4372 · 2 terms
Term #1 of the Conway climb · Base 11 sequence of 2795 · 2 terms
Term #1 of the Conway climb · Base 12 sequence of 37839 · 2 terms
Term #2 of the Conway climb · Base 24 sequence of 1714 · 3 terms
Term #1 of the Conway climb · Base 33 sequence of 3076 · 2 terms
Term #1 of the Second-class home prime · Base 8 sequence of 8744 · 2 terms
Term #2 of the Second-class home prime · Base 10 sequence of 35704 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 39348 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 3 sequence of 47226 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 8 sequence of 19674 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 10 sequence of 60754 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 16 sequence of 19674 · 2 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '74821' --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":"74821"},"decimal":false,"detail":2}}'