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5th Class (CBSE) Mathematics: Factors And Multiples

More Divisibility Rules

A number is divisible by

4 If the number formed by its last two digits is divisible by 4 or are zeros.
For example, 2832, 916, 83001

6 If the number is divisible by both 2 and 3.
For example, 384, 1602, 2982

8 If the number formed by its last three digits is divisible by 8.
For example, 7112, 13760, 26584

11 It the difference between the sum of digits in odd places and sum of digits in the even places is 0 or divisible by 11.

For example, 9845

More divisible rulesMore divisible rules

 

Question: State whether true or false.

  1. If a number is divisible by 9, it is also divisible by 3.
  2. All number divisible by 3 are odd number.
  3. If a number is divisible by 3, it is also divisible by 9.
  4. Some number divisible by 5 are even numbers.

Answer: 

  1. True
  2. False
  3. False
  4. True

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