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
Cosmic Cube and restores the timeline to what it should have been. A Cube is also given to Guardians of the Galaxy member Star-Lord by time-traveling villain Kang the Conqueror to use against Adam Warlock's evil alter ego, the Magus. However, Magus altered perception to make it seem like the Cube's power was used up. Star-Lord used the Cube's last bit of energy for real by subduing the reborn Thanos, rendering it a "cosmic paperweight". Absorbing Man becomes capable of assimilating the abilities of a fraction of a Cube. He is stopped by criminal mastermind Norman Osborn, who uses a magical sword