Introduction to Prime and Composite Numbers
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Questions and Answers

What is a prime number?

  • A whole number with more than two factors.
  • A whole number with exactly two different factors. (correct)
  • A number that can be divided by 2.
  • A whole number with only one factor.

    • What is a composite number?

  • A whole number with more than two different factors. (correct)
  • A whole number with exactly two different factors.
  • A whole number that only has 1 as a factor.
  • A whole number which is always odd.

    • Which of the following is the prime factorization of 30?

  • 2 x 3 x 5 (correct)
  • 3 x 10
  • 2 x 15
  • 5 x 6

    • Which number is neither prime nor composite?

    <p>1 (A)</p> Signup and view all the answers

    Which number is a perfect square?

    <p>16 (C)</p> Signup and view all the answers

    Which of these is a prime number?

    <p>13 (B)</p> Signup and view all the answers

    Which of these is a composite number?

    <p>14 (D)</p> Signup and view all the answers

    Which of the following is NOT a perfect square?

    <p>15 (D)</p> Signup and view all the answers

    Flashcards

    Prime Number

    A whole number greater than 1 that can only be divided evenly by 1 and itself.

    Composite Number

    A whole number greater than 1 that has more than two factors.

    Prime Factorization

    The process of breaking down a composite number into its prime factors.

    Highest Common Factor (HCF)

    The largest number that divides into two or more numbers without leaving a remainder.

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    Lowest Common Multiple (LCM)

    The smallest number that is a multiple of two or more numbers.

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    Perfect Square

    A whole number that can be obtained by squaring another whole number.

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    Square of a Number

    The product of a number multiplied by itself.

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    Square Root of a Number

    A number that results in a whole number when multiplied by itself.

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