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3 6 9 12 15 18 21 24 etc. A number is divisible by 3 if the sum of its digits are a multiple of 3. For example: 684. Add the digits and you get 18, which is a multiple of 3 (if you're not sure then add 1+8 = 9, which is a multiple of 3. If you repeat the summing of digits, eventually you will get to a single digit number: if it's 3,6 or 9, then it's a multiple of 3. Additionally, if it is 9, then it's a multiple of 9, as well.
What else can I help you with?
Are all numbers that are divisible by 9 divisible by 3?
Yes; all numbers that are divisible by 9 are divisible by 3.
Are all numbers divisible by 3 also by 9 give example?
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.
What counterexample to the statement all odd numbers are divisible be 3?
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.
Are all numbers divisible by 9 also divisible by 3?
Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.
Are all numbers that are divisible by 3 divisible by 6?
No.
Are all numbers that are divisible by 9 also divisible by 3 are all numbers that are divisible by 3 also divisible by 9 how do you know?
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.
Are all numbers divisible by 6 are divisible by 3?
Yes
How many 3 digit numbers are divisible by 6 in all?
There are 151 3-digit numbers that are divisible by 6.
Are all even numbers divisible by 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.
Are all numbers divisible by 6 also divisible by 3?
Yes, if you are referring to whole numbers.
What are all the numbers 501 is divisible by?
501 is divisible by these numbers: 1, 3, 167, 501.
Are all numbers divisible by 6 are also divisible by 3?
Yes.
