Q: Why are all numbers divisible by 9 also divisible by 3?

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All numbers divisible by 3 are NOT divisible by 9. As an example, 6, which is divisible by 3, is not divisible by 9. However, all numbers divisible by 9 are also divisible by 3 because 9 is divisible by 3.

All numbers divisible by 9 are divisible by 3; since 9 = 3 x 3 all multiples of 9 are also multiples of 3. However, all numbers divisible by 3 are not divisible by 9, eg 6 = 2 x 3 but 6 is not divisible by 9 (since 6 is not a multiple of 9) - it only takes one counter example to disprove a theory.

Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.

Yes.

Yes, if you are referring to whole numbers.

Yes; all numbers that are divisible by 9 are divisible by 3.

Talking in Integers only, then no. Example, 3 is not divisible by 6. Talking all natural numbers... then yes. 3 / 6 = 0.5

yEAH, i THINK SO

Because 9 is divisible by 3, this is like the rule where if a number is divisible by 2 and 3 it is also divisible by 6.

because 6 is also divisiable by 3... just alike all numbers that are divisable by 162 are divisable by 6 AND 3

yes because 3 fits in 9 perfectly

5, 7, a bunch of numbers that are odd are not divisible by 3. numbers that are divisible by three can have all their numbers added together and come out with a number that is divisible by 3.

Yes, since 10 is divisible by 5. Likewise, every number which is divisible by 9 is also divisible by 3.

No.

Yes.

Numbers are divisible by 6 if they are divisible by both 2 and 3.All even numbers are divisible by 2. Odd numbers are not.To see if a number is divisible by 3, add the individual digits of the number to each other and see if that number is divisible by 3. If it is, then the original number is also divisible by 3.Example: 2712, add 2+7+1+2=12 Is 12 divisible by 3? Yes. Therefore, 2712 is divisible by 3.The number 2712 is also divisible by 2, since it is an even number.Now you know that 2712 is divisible by 6.

Any that are divisible by 9 are also divisible by 3.

Yes

All 4 digit numbers that are divisible by 9 are also divisible by 3. The first is 1008 and the last is 9999.

6

Not all even numbers are divisible by 6. These numbers are not evenly divisible by 6: Any number smaller than 6. Any number not divisible by 3. If a number is divisible by both 2 and 3, it is divisible by 6.

There are 151 3-digit numbers that are divisible by 6.

For example you have two numbers 4 and 5 and we add them the result is 9 which is also divisible by 3 if we divide it by 3 the result will be. So it means that total/addition of all the numbers which after addition can be divisible by 3.

Even numbers are divisible by 2. Even numbers that are divisible by 3 must be divisible by 2 and by 3, so they have to be divisible by 2 x 3.6, 12, 18, 24 â€¦

501 is divisible by these numbers: 1, 3, 167, 501.