Question

Is 3, 168 divisible by 3 or 9? Why or why not?

A) Divisible by 3 but not by 9

B) Divisible by 9 but not by 3

C) Divisible by both 3 and 9

D) Not divisible by either 3 or 9

Answer 1

3,168 is divisible by 3 but not by 9.

Step-by-step explanation:

To determine if a number is divisible by 3, we can check if the sum of its digits is divisible by 3. In the case of 3,168, the sum of its digits is 3 + 1 + 6 + 8 = 18, which is divisible by 3. Therefore, 3,168 is divisible by 3.

To determine if a number is divisible by 9, we can check if the sum of its digits is divisible by 9. In the case of 3,168, the sum of its digits is 18, which is not divisible by 9. Therefore, 3,168 is not divisible by 9.

Hence, the correct answer is A) Divisible by 3 but not by 9.