max number of moves to solve rubik's cube
Optimal solutions for Rubik's Cube The maximum number of face turns needed to solve any instance of the Rubik's Cube is 20,[2] and the maximum number of quarter turns is 26.[3] These numbers are also the diameters of the corresponding Cayley graphs of the Rubik's Cube group. In STM (slice turn metric) it's unknown.
Phase 10 There are one hundred and eight cards in a deck:
1 + 2 + 3 + 4 + ⋯ which increases without bound as n goes to infinity. Because the sequence of partial sums fails to converge to a finite limit, the series does not have a sum.
Exponentiation Any nonzero number raised to the 0 power is 1:[11]