Hi,
In mathematics square root having a significant importance while simplifying the numbers. The square root of a number results in a number which when multiplied with the same number gives the resultant number. To simplify a square root, one should 'group' or 'recognize' those number which have occurred twice or in other words have appeared 2 times as the factors of the number.
example:225
15
! 225
1! 1
2! 125
25! 125
! 0
so square roote of 15 is 225