What is the sqaure root of 124

In this case, you just multiply the expression under the root that gave the greatest integer (as you pull the square root of that number). See how I did: 4 multiplied by 31, which gives 124 then pull out the square root of 4, because 31 can not be, because it is a prime number and root would be an irrational number.

Hi, 

Think about your perfect squares: 1, 4, 9, 16, 25, etc. 

Therefore, do any of these perfect squares go into 124? Yes, 124 goes into 4, 31 times and therefore we can say: 

[ square root of 4 ] [ square root of 31 ] 

Now, the square root of 4 is a perfect square which can be simplified down to: 

2 square root of 31 < FINAL ANSWER 

Ithink the answer is c just trying to others