Mathematics for IGCSE & O level - Number (Section 1 - No. 37)
What is the highest common factor (HCF) of 24 and 36?
6
12
72
2
Explication
The HCF is the largest number that divides both 24 and 36. The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The largest number appearing in both lists is 12.