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.

FF · Fully factored
below threshold 4 digits
↪
Term #1 of the Home prime · Base 4 sequence of 322 · 123 terms
Term #1 of the Home prime · Base 10 sequence of 190 · 7 terms
Term #1 of the Inverse home prime · Base 3 sequence of 1678 · 2 terms
Term #1 of the Inverse home prime · Base 4 sequence of 1099 · 36 terms
Term #1 of the Inverse home prime · Base 6 sequence of 2095 · 5 terms
Term #1 of the Home prime · Base 12 sequence of 1207 · 3 terms
Term #3 of the Home prime · Base 18 sequence of 74 · 5 terms
Term #1 of the Home prime · Base 26 sequence of 1473 · 14 terms
Term #1 of the Home prime · Base 28 sequence of 501 · 10 terms
Term #1 of the Home prime · Base 30 sequence of 1334 · 18 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 1080 · 2 terms
Term #1 of the Inverse home prime · Base 14 sequence of 2327 · 3 terms
Term #1 of the Inverse home prime · Base 16 sequence of 1099 · 27 terms
Term #2 of the Inverse home prime · Base 18 sequence of 175 · 4 terms
Term #1 of the Inverse home prime · Base 30 sequence of 2407 · 6 terms
Term #1 of the Conway climb · Base 4 sequence of 322 · 34 terms
Term #1 of the Conway climb · Base 10 sequence of 190 · 7 terms
Term #1 of the Conway climb · Base 12 sequence of 1207 · 3 terms
Term #3 of the Conway climb · Base 18 sequence of 74 · 5 terms
Term #2 of the Conway climb · Base 26 sequence of 272 · 11 terms
Term #1 of the Conway climb · Base 28 sequence of 501 · 8 terms
Term #1 of the Conway climb · Base 30 sequence of 1334 · 16 terms
Term #1 of the Conway climb · Base 34 sequence of 192 · 14 terms
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 864 · 3 terms
Term #1 of the Distinct-prime home prime · Base 10 sequence of 190 · 7 terms
Term #2 of the Distinct-prime home prime, descending · Base 3 sequence of 902 · 7 terms
Term #1 of the Distinct-prime home prime, descending · Base 16 sequence of 1099 · 3 terms
Term #1 of the Second-class home prime · Base 10 sequence of 380 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 3 sequence of 890 · 10 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '2519' --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":"2519"},"decimal":false,"detail":2}}'