Divisibility Rule of 3


 
 
Concept Explanation
 

Divisibility Rule of 3

The Divisibility Rule for 3: A number is divisible by 3 if the sum of the digits is divisible by 3. This means that we need to add up the digits in the number and see if the answer can be divided by 3 without a remainder.

If the sum of the digits is exactly divisible by 3, then the given number will be exactly divisible by 3 otherwise not.

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Sample Questions
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Question : 1

Which of the following numbers are not divisible by 3?

556500 , 425421 , 910665, 514518, 432771, 648720,976430

Right Option : D
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Question : 2

If a number is divisible by 9, then it is also divisible by ________ number.

Right Option : A
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Question : 3

Which of the following number is divisible by 3?

121 , 543 , 665 , 875

Right Option : B
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