Question

Is it possible to do this without using a calculator?
Cube roots...

Answer 1

It's easy, do the prime factorization of any number. For 64, you get.

2 * 2 * 2 * 2 * 2 * 2

Make these in sets of three.

{2 * 2 * 2}, {2 * 2 * 2}
Find the cube root of each set, which in this case will obviously be 2.

2,2

Multiply the numbers you got:

2 * 2 = 4

\[\LARGE \sqrt[3]{64} = 4\]

Answer 2

oh ok! Thank you!