Question

Which number is exactly divisible by 3 please do in copy ​

Answer 1

According to the divisibility rule of 3, a number is said to be divisible by 3 if the sum of all digits of that number is divisible by 3. For example, the number 495 is exactly divisible by 3. The sum of all digits are 4 + 9 + 5 = 18 and 18 is exactly divided by 3

Answer 2

Hence, 54 is divisible by 3. Sum of all the digits of 171 = 1 + 7 + 1 = 9, which is divisible by 3. Hence, 171 is divisible by 3. Sum of all the digits of 277 = 2 + 7 + 7 = 16, which is not divisible by 3.