What is power of number like (power of 2, power of 10)? and how to calculate power of number.

I know my question is very simple to somebody, but I'm still don't understand so far.

What is power of number (ex. 2^6, 4^4)?
What is the steps to calculate power of number?


Please I want very very easy explanation to understand.

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I'm sorry; I don't understand the question. I would just say, "multiply". I don't know of any shortcut, except in special cases (powers of 10, etc.) – Eric Auld Aug 12 '13 at 23:36
The number $2^6$ is $2\times 2\times 2\times 2\times 2\times 2$. The number $10^3$ is $10\times 10\times 10$. The number $\pi^2$ is $\pi\times \pi$. – André Nicolas Aug 12 '13 at 23:37
@Eric Auld : I mean this power of 2 – Lion King Aug 12 '13 at 23:39

Well you can take $2^6$ and break it into smaller powers such as $2^3*2^3$.That should make it easier for you.