Multiple choice HCF of 56 and 40 is _____. 6 8 10 19 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Factors of 56 = 2 × 2 × 2 × 7 Factors of 40 = 2 × 2 × 2 × 5 HCF of 56 and 40 = 2 × 2 × 2 = 8