What's this number ? This number is a square number , a multiple of 3 and one more than a cube number . Thank you !!!!!!!!!!!
1 Answer
May 22, 2018
Well, you can probably brute force this...
Some square numbers are:
x^2 = 1, 4, 9, 16, 25, 36, 49, 64, 81, 100
- Of these, the only ones that are multiples of
3 are9 ,36 , and81 . Their digits add up to a number divisible by3 . 9 is one more than2^3 = 8 , and neither36 nor81 fit this condition.35 is not a perfect cube and neither is80 .
Therefore,
