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 226659 · 2 terms
Term #1 of the Home prime · Base 3 sequence of 32461 · 2 terms
Term #1 of the Home prime · Base 8 sequence of 3516 · 2 terms
Term #1 of the Home prime · Base 10 sequence of 38899 · 2 terms
Term #1 of the Home prime · Base 11 sequence of 5035 · 2 terms
Term #1 of the Inverse home prime · Base 3 sequence of 10506 · 2 terms
Term #1 of the Inverse home prime · Base 6 sequence of 60377 · 2 terms
Term #1 of the Home prime · Base 22 sequence of 7147 · 2 terms
Term #1 of the Home prime · Base 24 sequence of 5555 · 2 terms
Term #2 of the Home prime · Base 30 sequence of 1178 · 3 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 72186 · 2 terms
Term #1 of the Inverse home prime · Base 24 sequence of 13231 · 2 terms
Term #1 of the Inverse home prime · Base 27 sequence of 19261 · 2 terms
Term #1 of the Conway climb · Base 3 sequence of 26559 · 2 terms
Term #1 of the Conway climb · Base 8 sequence of 3516 · 2 terms
Term #1 of the Conway climb · Base 10 sequence of 38899 · 2 terms
Term #1 of the Conway climb · Base 11 sequence of 5035 · 2 terms
Term #1 of the Conway climb · Base 22 sequence of 2597 · 2 terms
Term #1 of the Conway climb · Base 24 sequence of 5555 · 2 terms
Term #2 of the Conway climb · Base 30 sequence of 1178 · 3 terms
Term #1 of the Distinct-prime home prime · Base 3 sequence of 32461 · 2 terms
Term #1 of the Distinct-prime home prime · Base 8 sequence of 11134 · 2 terms
Term #2 of the Distinct-prime home prime · Base 10 sequence of 32102 · 3 terms
Term #1 of the Distinct-prime home prime, descending · Base 3 sequence of 10506 · 2 terms
Term #3 of the Second-class home prime · Base 3 sequence of 13524 · 4 terms
Term #1 of the Second-class home prime · Base 8 sequence of 7032 · 2 terms
Term #2 of the Second-class home prime · Base 10 sequence of 64204 · 3 terms
Term #2 of the Mid-divisor concatenation · Base 2 sequence of 20606 · 3 terms
Term #2 of the Mid-divisor concatenation · Base 8 sequence of 21110 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 10 sequence of 38899 · 2 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '75557' --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":"75557"},"decimal":false,"detail":2}}'