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  • What are the prime factors of 28?
    2 and 7
  • What is a factor?
    A factor of a number is any whole number that can divide the number exactly (no remainder) .
  • What are the prime factors of 36?
    2 and 3
  • List the factors of 36.
    1, 2, 3, 4, 6, 9, 12, 18, 36
  • What are the prime numbers between 10 and 20?
    11, 13, 17, 19
  • What are the composite numbers between 10 and 20?
    10, 12, 14, 15, 16, 18, 20
  • What are the prime factors of 75?
    3 and 5
  • Which number between 6 and 12 have 3 as their factor?
    9
  • What is a composite number?
    A composite number has more than 2 factors. It can be divided exactly by a whole number besides 1 and itself.
  • What are the prime factors of 21?
    3 and 7
  • What are the prime numbers between 70-80?
    71, 73, 79
  • What are the factors of 39?
    1, 3, 13 and 39.
  • What is a prime number?
    A prime number is a whole number greater than 1 that has only 2 factors, 1 and itself.
  • What is a prime factor?
    A factor that is a prime number.
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