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 294833 · 2 terms
Term #1 of the Home prime · Base 11 sequence of 3475 · 2 terms
Term #2 of the Inverse home prime · Base 2 sequence of 15851 · 3 terms
Term #1 of the Inverse home prime · Base 3 sequence of 45017 · 2 terms
Term #2 of the Inverse home prime · Base 4 sequence of 15851 · 3 terms
Term #1 of the Inverse home prime · Base 7 sequence of 7689 · 2 terms
Term #1 of the Inverse home prime · Base 8 sequence of 61201 · 2 terms
Term #1 of the Inverse home prime · Base 9 sequence of 45017 · 2 terms
Term #1 of the Home prime · Base 12 sequence of 53373 · 2 terms
Term #1 of the Home prime · Base 13 sequence of 45754 · 2 terms
Term #1 of the Home prime · Base 14 sequence of 6334 · 2 terms
Term #1 of the Home prime · Base 22 sequence of 10703 · 2 terms
Term #1 of the Home prime · Base 28 sequence of 42429 · 2 terms
Term #1 of the Home prime · Base 30 sequence of 51998 · 2 terms
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of 69186 · 2 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 50448 · 2 terms
Term #1 of the Inverse home prime · Base 20 sequence of 71839 · 2 terms
Term #2 of the Inverse home prime · Base 23 sequence of 63 · 3 terms
Term #1 of the Inverse home prime · Base 28 sequence of 8571 · 2 terms
Term #1 of the Conway climb · Base 8 sequence of 20574 · 2 terms
Term #1 of the Conway climb · Base 12 sequence of 53373 · 2 terms
Term #1 of the Conway climb · Base 13 sequence of 45754 · 2 terms
Term #1 of the Conway climb · Base 14 sequence of 6334 · 2 terms
Term #1 of the Conway climb · Base 22 sequence of 10703 · 2 terms
Term #1 of the Conway climb · Base 28 sequence of 42429 · 2 terms
Term #1 of the Conway climb · Base 30 sequence of 51998 · 2 terms
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 53973 · 2 terms
Term #1 of the Distinct-prime home prime, descending · Base 3 sequence of 45017 · 2 terms
Term #3 of the Mid-divisor concatenation · Base 2 sequence of 20920 · 4 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '79999' --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":"79999"},"decimal":false,"detail":2}}'