The On-Line Encyclopedia of Integer Sequences (OEIS)

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Revision History for A118545

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A118545

Cubes for which the product of the digits is also a cube.
(history; published version)

#6 by Harvey P. Dale at Tue Oct 16 19:00:10 EDT 2018

STATUS

editing

approved

#5 by Harvey P. Dale at Tue Oct 16 19:00:06 EDT 2018

LINKS

Harvey P. Dale, <a href="/A118545/b118545.txt">Table of n, a(n) for n = 1..2500</a>

STATUS

approved

editing

#4 by Harvey P. Dale at Tue Oct 16 18:58:37 EDT 2018

STATUS

editing

approved

#3 by Harvey P. Dale at Tue Oct 16 18:58:35 EDT 2018

MATHEMATICA

Select[Range[100]^3, IntegerQ[Surd[Times@@IntegerDigits[#], 3]]&] (* Harvey P. Dale, Oct 16 2018 *)

STATUS

approved

editing

#2 by N. J. A. Sloane at Fri Sep 29 03:00:00 EDT 2006

EXAMPLE

24389 is in the sequence because (1) it's is a cube , , (2) the product of its digits is 2*4*3*8*9=1728 which is also cube.

KEYWORD

base,nonn,new

#1 by N. J. A. Sloane at Fri May 19 03:00:00 EDT 2006

NAME

Cubes for which the product of the digits is also a cube.

DATA

1, 8, 1000, 4096, 8000, 10648, 24389, 27000, 39304, 50653, 64000, 74088, 79507, 103823, 110592, 125000, 140608, 205379, 216000, 226981, 250047, 300763, 328509, 343000, 389017, 405224, 493039, 512000, 592704, 636056, 658503, 704969, 729000

OFFSET

1,2

EXAMPLE

24389 is in the sequence because (1) it's a cube , (2) the product of its digits is 2*4*3*8*9=1728 which is also cube.

KEYWORD

base,nonn

AUTHOR

Luc Stevens (lms022(AT)yahoo.com), May 03 2006

STATUS

approved