Find the cube of the number.

$-3.7$

Is $216$ a perfect cube?

[Hint. Resolve into prime factors and see if you can make triplets of like factors.]

Is $1331$ a perfect cube?

[Hint. Resolve into prime factors and see if you can make triplets of like factors.]

Is $864$ a perfect cube?

[Hint. Resolve into prime factors and see if you can make triplets of like factors.]

Is $4095$ a perfect cube?

[Hint. Resolve into prime factors and see if you can make triplets of like factors.]