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Using the tests for divisibility:

  • Divisible by 3:
Add the digits and if the sum is divisible by 3, so is the original number:

6 + 8 + 4 = 18 which is divisible by 3, so 684 is divisible by 3

  • Divisible by 6:
Number is divisible by 2 and 3:
  • Divisible by 2:
If the number is even (last digit divisible by 2), then the whole number is divisible by 2.

684 is even so 684 is divisible by 2.

  • Divisible by 3:
Already shown above to be divisible by 3.

684 is divisible by both 2 & 3 so 684 is divisible by 6

  • Divisible by 9:
Add the digits and if the sum is divisible by 9, so is the original number:

6 + 8 + 4 = 18 which is divisible by 9, so 684 is divisible by 9

Thus 684 is divisible by all 3, 6 & 9.

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12y ago
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9y ago

378 is divisible by both 3 and 9 with no remainders

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Wiki User

7y ago

6 yes

168 / 6 = 28

9 no

either 18 x 9 = 162

or 19 x 9 = 171

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Wiki User

8y ago

6 yes, 9 no.

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8y ago

3 yes, 9, no.

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8y ago

No, it is not divisible by 9.

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8y ago

No, it is not divisible by 6 and 9.

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8y ago

All but 4.

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Q: Is 78 divisible by 6 and 9?
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