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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.

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Q: How do you find the divisibility rule for nine?

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There is no easy rule for divisibility by 34.

By tautology. If it did not work, it would not be a divisibility rule!

why does the divisibility rule work for 4

What is the divisblity rule by 8

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By using the divisibility rule for 3, we find that 117 is divisible by 3. That makes it composite.

There is no easy rule for divisibility by 34.

add all the digits together and see if it is divisible by nine.

The divisibility rules of 4 and 9 are combined to make the divisibility rule of 36.

By tautology. If it did not work, it would not be a divisibility rule!

why does the divisibility rule work for 4

the divisibility rule for 2 is: The number is even;the last digit ends with a 2,4,6,8,10, etc.The divisibility rule fir 3 is: The sum of the number is divisible by 3The divisibility rule for 4 is: The last two digits are divisible by 4The divisibility rule for 5 is: The number ends with a 5 or 0The divisibility rule for 6 is: The sum CAN be divisible by 2 and or 3The divisibility rule for 9 is: The sum of the number is divisible by 9The divisibility rule for 10 is : The number ends with a 0

What is the divisblity rule by 8

Subtract nine times the last digit from the rest; repeat if necessary. The result must be divisible by 13.

The divisibility rule for 2 works because the base of our number system, 10, is divisible by 2.

there is a divisibility for 24 the rule is you can divide 24 as 6 and 4 i think

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