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 4 digits
↪
Term #2 of the Home prime · Base 2 sequence of 258 · 3 terms
Term #2 of the Home prime · Base 4 sequence of 985 · 3 terms
Term #1 of the Home prime · Base 7 sequence of 1075 · 2 terms
Term #1 of the Home prime · Base 8 sequence of 399 · 2 terms
Term #1 of the Inverse home prime · Base 4 sequence of 589 · 2 terms
Term #3 of the Inverse home prime · Base 8 sequence of 125 · 4 terms
Term #1 of the Home prime · Base 12 sequence of 1703 · 2 terms
Term #2 of the Home prime · Base 16 sequence of 985 · 3 terms
Term #1 of the Home prime · Base 24 sequence of 363 · 2 terms
Term #1 of the Home prime · Base 31 sequence of 76 · 2 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 1020 · 2 terms
Term #1 of the Inverse home prime · Base 24 sequence of 913 · 2 terms
Term #3 of the Conway climb · Base 2 sequence of 623 · 4 terms
Term #2 of the Conway climb · Base 4 sequence of 985 · 3 terms
Term #1 of the Conway climb · Base 8 sequence of 399 · 2 terms
Term #2 of the Conway climb · Base 9 sequence of 655 · 3 terms
Term #1 of the Conway climb · Base 12 sequence of 1703 · 2 terms
Term #2 of the Conway climb · Base 16 sequence of 985 · 3 terms
Term #1 of the Conway climb · Base 25 sequence of 375 · 2 terms
Term #1 of the Conway climb · Base 29 sequence of 242 · 2 terms
Term #1 of the Conway climb · Base 30 sequence of 1472 · 2 terms
Term #1 of the Conway climb · Base 31 sequence of 76 · 2 terms
Term #3 of the Distinct-prime home prime · Base 2 sequence of 623 · 4 terms
Term #2 of the Distinct-prime home prime · Base 8 sequence of 346 · 3 terms
Term #2 of the Distinct-prime home prime · Base 16 sequence of 985 · 3 terms
Term #2 of the Distinct-prime home prime, descending · Base 8 sequence of 365 · 3 terms
Term #1 of the Second-class home prime · Base 2 sequence of 1494 · 2 terms
Term #2 of the Second-class home prime · Base 8 sequence of 200 · 3 terms
Term #2 of the Second-class home prime · Base 16 sequence of 868 · 3 terms
Term #4 of the Mid-divisor concatenation · Base 2 sequence of 423 · 5 terms
Term #2 of the Mid-divisor concatenation · Base 3 sequence of 663 · 3 terms
Term #3 of the Mid-divisor concatenation · Base 8 sequence of 346 · 4 terms
Term #2 of the Mid-divisor concatenation · Base 16 sequence of 985 · 3 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '2003' --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":"2003"},"decimal":false,"detail":2}}'