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 6 digits
↪
Term #1 of the aliquot sequence of 246429 · 2 terms
Term #2 of the Home prime · Base 2 sequence of 27491 · 3 terms
Term #2 of the Inverse home prime · Base 2 sequence of 47165 · 3 terms
Term #1 of the Inverse home prime · Base 3 sequence of 52748 · 2 terms
Term #1 of the Inverse home prime · Base 4 sequence of 75469 · 2 terms
Term #2 of the Home prime · Base 28 sequence of 306 · 3 terms
Term #1 of the Home prime · Base 35 sequence of 65882 · 2 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 53340 · 2 terms
Term #1 of the Inverse home prime · Base 16 sequence of 75469 · 2 terms
Term #2 of the Inverse home prime · Base 32 sequence of 7981 · 3 terms
Term #2 of the Conway climb · Base 2 sequence of 27491 · 3 terms
Term #3 of the Conway climb · Base 8 sequence of 35249 · 4 terms
Term #1 of the Conway climb · Base 15 sequence of 3850 · 2 terms
Term #2 of the Conway climb · Base 28 sequence of 408 · 3 terms
Term #1 of the Conway climb · Base 35 sequence of 65882 · 2 terms
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 50080 · 2 terms
Term #2 of the Distinct-prime home prime · Base 2 sequence of 27491 · 3 terms
Term #2 of the Distinct-prime home prime, descending · Base 2 sequence of 47165 · 3 terms
Term #1 of the Distinct-prime home prime, descending · Base 3 sequence of 79126 · 2 terms
Term #1 of the Distinct-prime home prime, descending · Base 16 sequence of 75469 · 2 terms
Term #1 of the Second-class home prime · Base 2 sequence of 77262 · 2 terms
Term #3 of the Mid-divisor concatenation · Base 2 sequence of 44424 · 4 terms
Term #1 of the Mid-divisor concatenation · Base 3 sequence of 96066 · 2 terms
Term #2 of the Mid-divisor concatenation · Base 8 sequence of 62506 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 10 sequence of 81538 · 2 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '118691' --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":"118691"},"decimal":false,"detail":2}}'