Question

Find the greatest number that exactly divides 15,30 and 40.

• A. 3
• B. 40
• C. 5
• D. 15

Answer 1

Answer:

C. 5

15 = 3 × 5 30 = 2 × 3 × 5 40 = 2 × 2 × 2 × 5 HCF of 15, 30, 40 = 5