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The sum of the factors are divisible by 9.

Ex:

738

7+3+8=18

18/9=2

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Q: What is the rule for numbers divisible by 9?
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What is the divisibility rule for 9?

If you add up the digits, and the sum is divisible by 9 or a multiple of 9.* * * * *For really big numbers you may need to find the digital root (sum of digits) of the digital root.The divisibility rule for 9 is that the sum of the digits of a number must add up to 9 or a multiple of 9.For example, is 81 divisible by 9? Lets find out! 8+1=9. Then it is divisible by 9.


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.


Are all numbers that are divisible by 9 divisible by 3?

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


What is the divisiblity rule of 9?

The rule to decide if a number is divisible by 9 is to look at the sum of the digits. If the sum of the digits is divisible by 9, then so is the number.


How many numbers are divisible by 9 between 5 and 1000?

111 numbers between 5 and 1000 are divisible by 9


What are the divisible numbers for 9?

Nine is divisible by 1, 3 and 9.


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.


What numbers divisible by 9?

ANSWER:The numbers that are divisible by 9 are the numbers whose sum of the digits is a multiple of 9Example:27 = 2 + 7 = 9 (9 is a multiple of 9 thus 27 is divisible by 9)99 = 9 + 9 = 18 (18 is a multiple of 9 thus 99 is divisible by 9)


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 9 also divisible by 4?

no, 18 is divisible by 9 but not by 4.


How do you find the divisibility rule for nine?

If a numbers digits add up to a number that is divisible by nine, the number is divisible by nine. Example~ 486 4+8+6=18 Since 18 is divisible by 9, 486 is divisible by 9. 561 5+6+1=12. 561 isn't divisible by 9.


What numbers in between 49 and 95 are divisible by 35 and 9?

There are no such numbers. The only number in the range that is divisible by 35 is 70 and that is not divisible by 9.