Write t-sql code to get Square root of integer number without using SQRT function

Declare @v_ActualNumber INT
Declare @v_FinalSquareRootNumber INT
Declare @v_SquareRootNumber INT
Declare @v_ID INT

Set @v_ActualNumber = 63297936
Set @v_FinalSquareRootNumber = 1
Set @v_ID = 2

While(@v_ActualNumber <> 1)
Begin
    if (@v_ActualNumber%@v_ID = 0)
    Begin
        Set @v_SquareRootNumber = @v_ID

        Set @v_ActualNumber = @v_ActualNumber/(@v_SquareRootNumber * @v_SquareRootNumber)

        Set @v_FinalSquareRootNumber = @v_FinalSquareRootNumber * @v_SquareRootNumber
    End
    Else
    Begin
        Set @v_ID = @v_ID + 1
    End
End

Select @v_FinalSquareRootNumber