Multiple choice

What is the highest common factor of 16 and 32?

  1. 2

  2. 3

  3. 4

  4. 16
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Prime factorisation of 16 = 2 × 2 × 2 × 2 Prime factorisation of 32 = 2 × 2 × 2 × 2 × 2 HCF of 16 and 32 = 2 × 2 × 2 × 2 = 16

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