Divisibility Criteria Quiz

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Questions and Answers

Which statement correctly defines divisibility by 2?

  • A number is divisible by 2 if it ends in an odd number.
  • A number is divisible by 2 if it ends in an even number or zero. (correct)
  • A number is divisible by 2 if it is a multiple of 4.
  • A number is divisible by 2 if the sum of its digits is even.

What is the criterion for a number to be divisible by 3?

  • The last digit must be a multiple of 3.
  • The number must end in a zero.
  • The sum of the digits must be even.
  • The sum of the digits must be divisible by 3. (correct)

Under which condition is a number divisible by 4?

  • When the last digit is even.
  • When the last two digits form a multiple of 4. (correct)
  • When the number is even.
  • When the number has at least two non-zero digits.

Which of the following indicates a number is divisible by 5?

<p>The last digit is either 0 or 5. (C)</p> Signup and view all the answers

Which condition is NOT a criterion for a number to be divisible by 6?

<p>The last digit is 0 or 2. (D)</p> Signup and view all the answers

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Study Notes

Divisibility Criteria

  • A whole number is perfectly divisible by another whole number if it meets specific conditions.

  • Divisibility by 2:

    • A number qualifies if it ends with an even digit (0, 2, 4, 6, 8).
  • Divisibility by 3:

    • The sum of all digits in the number must also be divisible by 3.
  • Divisibility by 4:

    • A number is divisible if its last two digits form a number that is divisible by 4.
  • Divisibility by 5:

    • The number must end in either a zero or the digit 5 to be divisible by 5.

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