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 188305 · 2 terms
Term #1 of the Home prime · Base 3 sequence of 2820 · 2 terms
Term #1 of the Home prime · Base 4 sequence of 4485 · 2 terms
Term #1 of the Home prime · Base 5 sequence of 4953 · 2 terms
Term #2 of the Home prime · Base 8 sequence of 19735 · 3 terms
Term #1 of the Home prime · Base 10 sequence of 3175 · 2 terms
Term #3 of the Inverse home prime · Base 2 sequence of 21733 · 4 terms
Term #1 of the Inverse home prime · Base 4 sequence of 10335 · 2 terms
Term #2 of the Inverse home prime · Base 6 sequence of 13543 · 3 terms
Term #2 of the Home prime · Base 12 sequence of 5874 · 3 terms
Term #2 of the Home prime · Base 16 sequence of 19735 · 3 terms
Term #1 of the Home prime · Base 25 sequence of 4953 · 2 terms
Term #1 of the Home prime · Base 26 sequence of 7197 · 2 terms
Term #1 of the Home prime · Base 27 sequence of 31522 · 2 terms
Term #1 of the Home prime · Base 30 sequence of 13847 · 2 terms
Term #1 of the Aliquot variants · Augmented · σ(n) − n + 1 sequence of 52010 · 2 terms
Term #1 of the Inverse home prime · Base 22 sequence of 36499 · 2 terms
Term #1 of the Inverse home prime · Base 34 sequence of 14053 · 2 terms
Term #2 of the Inverse home prime · Base 36 sequence of 13543 · 3 terms
Term #1 of the Conway climb · Base 3 sequence of 2820 · 2 terms
Term #1 of the Conway climb · Base 4 sequence of 4485 · 2 terms
Term #1 of the Conway climb · Base 5 sequence of 4953 · 2 terms
Term #2 of the Conway climb · Base 8 sequence of 19735 · 3 terms
Term #2 of the Conway climb · Base 12 sequence of 5874 · 3 terms
Term #2 of the Conway climb · Base 16 sequence of 19735 · 3 terms
Term #1 of the Conway climb · Base 25 sequence of 4953 · 2 terms
Term #1 of the Conway climb · Base 26 sequence of 7197 · 2 terms
Term #1 of the Conway climb · Base 27 sequence of 31522 · 2 terms
Term #1 of the Conway climb · Base 30 sequence of 13847 · 2 terms
Term #3 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 15148 · 4 terms
Term #5 of the Distinct-prime home prime · Base 3 sequence of 5430 · 6 terms
Term #2 of the Distinct-prime home prime · Base 8 sequence of 19735 · 3 terms
Term #2 of the Distinct-prime home prime · Base 16 sequence of 19735 · 3 terms
Term #3 of the Distinct-prime home prime, descending · Base 2 sequence of 21733 · 4 terms
Term #1 of the Second-class home prime · Base 3 sequence of 5640 · 2 terms
Term #1 of the Second-class home prime · Base 8 sequence of 48854 · 2 terms
Term #1 of the Second-class home prime · Base 10 sequence of 6350 · 2 terms
Term #1 of the Second-class home prime · Base 16 sequence of 48854 · 2 terms
Term #2 of the Mid-divisor concatenation · Base 2 sequence of 24779 · 3 terms
Term #2 of the Mid-divisor concatenation · Base 3 sequence of 22575 · 3 terms
Term #2 of the Mid-divisor concatenation · Base 8 sequence of 19735 · 3 terms
Term #4 of the Mid-divisor concatenation · Base 10 sequence of 2590 · 5 terms
Term #3 of the Mid-divisor concatenation · Base 16 sequence of 3946 · 4 terms
Is factor of

Primality

Verified directlyproven prime

Checked deterministically (below 300 digits).

From the command linefdb · curl
fdb
fdb number '55127' --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":"55127"},"decimal":false,"detail":2}}'