use a loop to calculate the number of times the number is divisible by 2
keep dividing the number as long as the number is greater than 1.
P:The preceding problem could be solved using the following code snippet:
var counter = 0 var num = 32//www.j av a2 s. c om while num > 1 { counter++ num /= 2 } print("The number is \(counter) times divisible by 2")