Mathematics for IGCSE & O level - Number (Section 2 - No. 45)
What is the highest common factor (HCF) of 8 and 12?
2
4
24
96
Explanation
The factors of 8 are 1, 2, 4, and 8. The factors of 12 are 1, 2, 3, 4, 6, and 12. The highest common factor is 4.