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 5 digits
↪
Term #2 of the Home prime · Base 4 sequence of 3235 · 7 terms
Term #1 of the Home prime · Base 6 sequence of 440 · 26 terms
Term #1 of the Inverse home prime · Base 2 sequence of 14073 · 2 terms
Term #1 of the Inverse home prime · Base 4 sequence of 4161 · 32 terms
Term #1 of the Inverse home prime · Base 6 sequence of 5731 · 8 terms
Term #4 of the Largest prime factor · largest prime² - 2 sequence of 5 · 18 terms
Term #1 of the Home prime · Base 16 sequence of 5767 · 54 terms
Term #3 of the Home prime · Base 17 sequence of 205 · 23 terms
Term #1 of the Home prime · Base 20 sequence of 5534 · 3 terms
Term #1 of the Aliquot variants · Quasi · σ(n) − n − 1 sequence of 10872 · 2 terms
Term #1 of the Inverse home prime · Base 36 sequence of 5731 · 6 terms
Term #2 of the Conway climb · Base 4 sequence of 3235 · 6 terms
Term #1 of the Conway climb · Base 16 sequence of 5767 · 5 terms
Term #3 of the Conway climb · Base 17 sequence of 175 · 18 terms
Term #1 of the Conway climb · Base 20 sequence of 5534 · 7 terms
Term #1 of the Prime-stopping maps · σ(n) − 1 until a prime sequence of 14073 · 2 terms
Term #1 of the Distinct-prime home prime · Base 16 sequence of 5767 · 2 terms
Term #1 of the Distinct-prime home prime, descending · Base 2 sequence of 14073 · 2 terms
Term #1 of the Second-class home prime · Base 16 sequence of 11534 · 2 terms
Term #1 of the Mid-divisor concatenation · Base 2 sequence of 9532 · 3 terms
Term #1 of the Mid-divisor concatenation · Base 8 sequence of 9532 · 3 terms
Term #2 of the Mid-divisor concatenation · Base 16 sequence of 2220 · 20 terms
Is factor of
From the command linefdb · curl
fdb
fdb number '18767' --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":"18767"},"decimal":false,"detail":2}}'