Question

4) Determine whether 64275 and 65403 are divisible by 3 and 9 respectively.​

Answer 1

Answer:

64275 is divisible by 3 but not 9

65403 is divisible by both 3 and 9

Step-by-step explanation:

add the digits

check whether the sum is multiple of 3 and 9

Answer 2

Answer:

64275 is divisible by 3

65403 is divisible by 9

Step-by-step explanation:

To check whether a number is divisible by 3 or 9, add the digits of the number. If the sum of the digits is divisible by 3 or 9, the number is divisible by 3 or 9.

6+4+2+7+5=24

24/3=8

64275 is divisible by 3

6+5+4+0+3=18

18/9=2

65403 is divisible by 9