Question

What is the sqaure root of 124

Answer 1

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

Answer 2

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.


`√(124)=√(4*31)=√(31)*√(4)=2√(31)=~11.14`