factordbrpc · fdb
Sign in

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 6 digits
↪
Term #1 of the aliquot sequence of 2499493 · 2 terms
Term #4 of the Home prime · Base 3 sequence of 3946 · 5 terms
Term #1 of the Home prime · Base 6 sequence of 67687 · 2 terms
Term #2 of the Home prime · Base 9 sequence of 24253 · 3 terms
Term #1 of the Inverse home prime · Base 2 sequence of 110283 · 2 terms
Term #1 of the Inverse home prime · Base 4 sequence of 110283 · 2 terms
Term #1 of the Home prime · Base 12 sequence of 2093 · 2 terms
Term #1 of the Home prime · Base 14 sequence of 95397 · 2 terms
Term #2 of the Home prime · Base 30 sequence of 3044 · 3 terms
Term #1 of the Home prime · Base 36 sequence of 8985 · 2 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 90336 · 2 terms
Term #1 of the Inverse home prime · Base 12 sequence of 23483 · 2 terms
Term #1 of the Inverse home prime · Base 15 sequence of 19606 · 2 terms
Term #4 of the Conway climb · Base 3 sequence of 3946 · 5 terms
Term #1 of the Conway climb · Base 6 sequence of 67687 · 2 terms
Term #2 of the Conway climb · Base 9 sequence of 24253 · 3 terms
Term #1 of the Conway climb · Base 12 sequence of 2093 · 2 terms
Term #1 of the Conway climb · Base 14 sequence of 95397 · 2 terms
Term #2 of the Conway climb · Base 30 sequence of 3044 · 3 terms
Term #1 of the Conway climb · Base 36 sequence of 8985 · 2 terms
Term #4 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 35584 · 5 terms
Term #4 of the Distinct-prime home prime · Base 3 sequence of 20009 · 5 terms
Term #2 of the Mid-divisor concatenation · Base 3 sequence of 24253 · 3 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '147047' --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":"147047"},"decimal":false,"detail":2}}'