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

Question

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

And now my questions about this subject is:

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.

Answer 1

In the expression a^b, let us assume that b is a positive integer. Then the value of the expression is calculated by multiplying a by itself b times. thus 2^6 means to multiply 2 by itself 6 times: 2*2*2*2*2**2 = 64. 4^4 is calculated as 4*4*4*4 = 256. If b is not a positive integer, things become more complicated but I don't think you are ready for that.

Answer 2

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.