. What is the HCF of 15 and 18
Best Answer
The HCF of 15 and 18 is 3
HCF 15 and 18 is the largest possible number that divides 15 and 18 exactly without remainder. 15 and 18 factors are 1, 3, 5, 15 and 1, 2, 3, 6, 9, 18 respectively. There are 3 commonly used methods for finding HCF of 15 and 18 - by long division, by prime factorization, and by Euclidean algorithm.
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