Multiple choice

Which of the following sets of numbers will have the highest common factor as 16?

  1. 48, 96, 145

  2. 24, 40, 64

  3. 50, 560, 140

  4. 48, 80, 112
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

48, 80, 112 Factors of 48 = 2 x 2 x 2 x 2 x 3 Factors of 80 = 2 × 5 × 2 × 2 × 2 × 5 Factors of 112 = 2 × 2 × 2 × 2 × 7 HCF = 2 × 2 × 2 × 2 = 16

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