64 (number) it is possible to find sequences of 64 consecutive integers such that each inner member shares a factor with either the first or the last member, 64 is an Erdős–Woods number. In base 10, no integer added up to its own digits yields 64, hence it is a self number. 64 is a superperfect number—a number such that σ(σ("n")) = 2"n". 64 is the index of Graham's number in the rapidly growing sequence 3↑↑↑↑3, 3 ↑ 3,… Sixty-four is: 64 (number) 64 (sixty-four) is the natural number following 63 and preceding 65. Sixty-four is the square of 8, the cube
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