Question

Test the divisibility by 3 and by 5 of the number 639210​

Answer 1

Answer:

Yes it is divisible by both..

Answer 2

Given: The number 639210 is given

To find: Divisibility of 639210 by 3 and 5

Solution: To check whether a number is divisible by 5 or not, we check the last digit of the number.

If the last digit is 0 or 5, the number is said to be divisible by 5.

Here, the last digit of 639210 is 0. Therefore, it is divisible by 5.

To check whether a number is divisible by 3 or not, we find the sum of the digits of the number. If the sum is divisible by 3, the number is divisible by 3.

Here, 6+3+9+2+1+0= 21 which is divisible by 3. Therefore, the number is divisible by 3.

Therefore, the number 639210 is divisible by both 3 and 5.