Learning Task 1. Observe the following divisibility rules in the example below. 1. Is 27 divisible by 3? Yes, because the sum of its digit is divisible by 3 2+7=9 9 is divisible by 3 2. Is 144 divisible by 6? Yes, because 144 is divisible by 2 and 3. So, it is also divisible by 6 3. 87651 divisible by 9? Yes, because of its digit is divisible by 9. 8+7+6+5+1=2 is divisible by 9