Almost the same rule and dividing by 3. Add up all the digits in the number. Find out what the sum is. If the sum is divisible by 9, so is the number.
For example: 43785 (4+3+7+8+5=27) 27 is divisible by 9, therefore 43785 is too!
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The roster method represents a set of something. In algebra, the roster method is used to describe a simpler set that is difficult to describe.
No, 6 does not go evenly into 2345. A method to find out if something is divisible by 6 is... Is it divisible by 2? Is it divisible by 3? 2*3=6 So, 2 and 3 should be able to go evenly into the number.
Yes, to check for divisibility by three, use the sum of digits method: 5 + 3 + 4 = 12. Twelve is divisible by 3, so 534 is also divisible by 3
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