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 #35 of the aliquot sequence of 180 · 51 terms
Term #1 of the Inverse home prime · Base 6 sequence of 1046 · 31 terms
Term #1 of the Home prime · Base 21 sequence of 371 · 13 terms
Term #1 of the Home prime · Base 29 sequence of 1851 · 8 terms
Term #1 of the Home prime · Base 31 sequence of 771 · 5 terms
Term #2 of the Aliquot variants · Bi-unitary · σ**(n) − n sequence of 1880 · 3 terms
Term #2 of the Aliquot variants · Infinitary · σ∞(n) − n sequence of 1880 · 3 terms
Term #1 of the Inverse home prime · Base 13 sequence of 1687 · 9 terms
Term #1 of the Inverse home prime · Base 21 sequence of 1639 · 10 terms
Term #1 of the Conway climb · Base 6 sequence of 1444 · 3 terms
Term #1 of the Conway climb · Base 21 sequence of 371 · 19 terms
Term #1 of the Conway climb · Base 29 sequence of 1851 · 5 terms
Term #1 of the Conway climb · Base 31 sequence of 771 · 5 terms
Term #1 of the Mid-divisor concatenation · Base 3 sequence of 2356 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 10 sequence of 1240 · 7 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '3140' --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":"3140"},"decimal":false,"detail":2}}'