A number is divisible by 9 if all the digits add up to 9 or are a factor of. IF the digits add up to 9 (or a factor of 9), they will automatically be a factor of 3.
Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.
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Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.
1350 is divisible by all of the numbers of 3, 6 and 9
Any that are divisible by 9 are also divisible by 3.
If you add all the digits up in one number, then divide it by 3 and it comes out even, that number is divisible by 3. Example: 32,112 3 + 2 + 1 + 1 + 2 = 9 9/3 = 3 So 9 is divisible by 3 and that is how you know if a certain number is divisible by 3. To list all the numbers divisible by three would be impossible. 3, 6, 9 and just keep adding three until you get to infinity.
Oh, dude, all numbers divisible by 3 are basically multiples of 3. So, like, you start at 3 and just keep adding 3 to get the next number divisible by 3. It's like a never-ending party where every third person gets in for free.