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  • HCF of co prime numbers 4 and 15 was found as follows by factorisation 4 is equal to 2 multiply 2 and 15 is equal to 3 multiply 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

3. 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?

Answers (1)

best_answer

No, the answer is not correct. 1 is the correct HCF.

As 

4 = 2 \times 2 \times 1

15 = 3 \times 5 \times 1

1 is common in both so HCF is 1.

Posted by

Pankaj Sanodiya

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