64 (number) 64 (number) 64 (sixty-four) is the natural number following 63 and preceding 65. Sixty-four is the square of 8, the cube of 4, and the sixth power of 2. It is the smallest number with exactly seven divisors. It is the lowest positive power of two that is adjacent to neither a Mersenne prime nor a Fermat prime. 64 is the sum of Euler's totient function for the first fourteen integers. It is also a dodecagonal number and a centered triangular number. 64 is also the first whole number that is both a perfect square and a perfect cube. Since
Cube (collectible card game variation) constructed to be played like a non-collectible customizable card game or ECG (Expandable Card Game), also known as a Living Card Game (LCG). A cube's construction is done with a focus on what type of metagame is desired. Cube (collectible card game variation) A Cube is a variation of gameplay for collectible card games. It is a player-made set of at least 360 cards created for the purposes of drafting, though as many as 720 can be used. Booster packs are simulated from the contents of the cube and are used to draft cards for play. A cube typically accommodates