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
Florida State Road 729 98/441/SR 15, which continues along the shore of Lake Okeechobee as Everglades Street. The route was originally signed as State Road 15A. Florida State Road 729 Known to residents of Pahokee, Florida, as State Market Road, State Road 729 (SR 729) is a long north–south road bypassing the city on the southeastern shore of Lake Okeechobee. SR 729 is entirely within the city limits of Pahokee and serves as a truck bypass. As motorists driving northbound on US 98/441/SR 15 veer to the west onto East Seventh Street and north onto Lake Avenue to go into downtown Pahokee, SR 729