Find the smallest number by which 27783 should be multiplied to get a perfect cube number.

With what least number should 8640 be divided so that the quotient is a perfect cube?

The cube root of 0.000027 is :

1. 0.03

2. 0.003

3. 0.3

4. 0.00003

The cube root of -0.064 is:

1. -0.8

2. 0.8

3. 0.4

4. -0.4