|
|
A260049
|
|
Composites whose prime factorization in base 5 is an anagram of the number in base 5.
|
|
11
|
|
|
2312, 2432, 3232, 5319, 5373, 10112, 10719, 11691, 14592, 15417, 19712, 20412, 21688, 22194, 23841, 24705, 25920, 26217, 32724, 36096, 39168, 41823, 42194, 42417, 43713, 51597, 58029, 59211, 61557, 62192, 66944, 67068, 68553, 72873, 76464
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
EXAMPLE
|
2312 = 2^3 * 17^2. In base 5, 33222 = 2^3 * 32^2.
|
|
MATHEMATICA
|
Select[Range[10^5], !PrimeQ[#] && Sort@ IntegerDigits[#, 5] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 5] &] (* Giovanni Resta, Jul 14 2015 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
base,easy,nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|