Answer :
The highest common factor(HCF) of 15 and 30 is 15
How to find highest common factor(HCF)
Given:
15 and 30
- Factors of 15 = 1, 3, 5, and 15
- Factors of 30 = 1, 2, 3, 5, 6, 10, 15, and 30
The common factors of 15 and 30 are 1, 3, 5 and 15
- The highest of the common factors is 15
Therefore, the highest common factor(HCF) is 15
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