Factors of a Number Quiz
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Questions and Answers

What are factors of a number?

  • Integers that divide into the number with no remainder (correct)
  • Fractions or decimals that divide into the number with no remainder
  • Numbers that can only be multiplied to produce the given number
  • Non-integer values that divide into the number with no remainder
  • What is a prime number?

  • A number that can only be multiplied by 1 to produce itself
  • A number with exactly two factors, 1 and itself (correct)
  • A number that is not divisible by any other numbers
  • A number with more than two factors
  • What are the factors of 36?

  • $1, 2, 3, 5, 6, 9, 12, 18, 36$
  • $1, 2, 3, 4, 6, 9, 12, 18, 36$ (correct)
  • $1, 2, 3, 4, 6, 8, 12, 16$
  • $1, 2, 3, 4, 6, 8, 12, 24$
  • What are the prime factors of $24$?

    <p>$2^2 \times 3$</p> Signup and view all the answers

    Which statement about composite numbers is correct?

    <p>Composite numbers have more than two factors</p> Signup and view all the answers

    What does it mean to find the prime factorization of a number?

    <p>To write the number as a product of only prime factors</p> Signup and view all the answers

    What is the prime factorization of 80?

    <p>$80 = 2 \times 2 \times 2 \times 2 \times 5$</p> Signup and view all the answers

    What method is sometimes called the ladder method or upside-down division for finding prime factorization?

    <p>Dividing the number by its prime factors and writing factors on the right side</p> Signup and view all the answers

    What is the prime factorization of 42 using a factor tree?

    <p>$42 = 2 \times 3 \times 7$</p> Signup and view all the answers

    How would you find the prime factorization of 120 using a general method?

    <p>$120 = 2 \times 2 \times 2 \times 3 \times 5$</p> Signup and view all the answers

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