8 is the second cube, (2^{3})

There are 8 notes in an octave.

8 times any triangular number is 1 less than a square.

8 is the first number in English alphabetical sequence.

An octahedron has 8 triangular faces, 6 vertices and 12 edges.

8 is the sixth Fibonacci number and the only one that is a cube.

A number is divisible by 8 if the number formed by its last three digits is divisible by 8

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