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Grade 4 Math — Factor pairs and multiples

Find the factor pairs of a number, list its multiples, and spot factors and multiples two numbers share.

Name: ________________________

  1. 1.Put these numbers in order, starting with the one that has the fewest factors.

    • 9
    • 24
    • 12
    • 7

  2. 2.Which number is a multiple of both 3 and 4?

    • a) 16
    • b) 22
    • c) 24
    • d) 9

  3. 3.What is the smallest number that is a multiple of both 4 and 6?

  4. 4.Match each number to a factor pair that makes it.

    • 16
    • 18
    • 20
    • 21
    • 25
    • 4 × 5
    • 3 × 7
    • 5 × 5
    • 3 × 6
    • 2 × 8

  5. 5.20 tiles are laid out in equal rows of 4. How many rows are there?

  6. 6.Exactly one number on this line is a multiple of 9. Tap it.

    Mark the line with an X.

    2021222324252627282930

  7. 7.What is the largest number that is a factor of both 12 and 18?

  8. 8.Sort each number by whether it divides 36 exactly.

    Groups: A factor of 36 · Not a factor of 36

    • 9
    • 8
    • 12
    • 4
    • 6
    • 15
    • 24
    • 5

Answer key — Grade 4 Math — Factor pairs and multiples

  1. 1. 1. 7 2. 9 3. 12 4. 24
  2. 2. c) 24
  3. 3. 12
  4. 4. 16 → 2 × 8; 18 → 3 × 6; 20 → 4 × 5; 21 → 3 × 7; 25 → 5 × 5
  5. 5. 5
  6. 6. 27
  7. 7. 6
  8. 8. 4 → A factor of 36; 5 → Not a factor of 36; 6 → A factor of 36; 8 → Not a factor of 36; 9 → A factor of 36; 12 → A factor of 36; 15 → Not a factor of 36; 24 → Not a factor of 36