Cube (algebra) however, easy to show that most numbers are not perfect cubes because "all" perfect cubes must have digital root 1, 8 or 9. That is their values modulo 9 may be only −1, 1 and 0. Moreover, the digital root of any number's cube can be determined by the remainder the number gives when divided by 3: Every positive integer can be written as the sum of nine (or fewer) positive cubes. This upper limit of nine cubes cannot be reduced because, for example, 23 cannot be written as the sum of fewer than nine positive cubes: The equation has
The Cube (building) useful information for residents and present 24 hours. The residents in West Wing is strictly restricted to use concierge service offered by the Cube, even though a concierge desk is present at the entrance of West Wing but never taken in operation as concierge service. The third element is the two storey crown that sits on top of the cube element. It is two storeys in height and will house facilities for the boutique hotel and a rooftop restaurant with skybar, offering panoramic views of the city centre. Unlike the rest of the Cube, the crown is constructed from a