HCF of co-prime numbers 4 and 15 was found as follows by factorisation:
4 = 2 × 2 and 15 = 3 × 5 since there is no common prime factor, so HCF of 4 and 15 is 0. Is the answer correct? If not, what is the correct HCF?
Answer:
No, the answer is not correct because 1 is the correct answer. Confusion arises because 1 is not shown in the prime factorization of any number.
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