Multiple choice

What is the highest common factor of 15 and 25?

  1. 0

  2. 5

  3. 15

  4. 25

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Factors of 15 = 3 × 5 Factors of 25 = 5 × 5 HCF of 15 and 25 = 5