Question

How to do HCF
a)54,72,90​

Answer 1

Answer:

Given: Number are 54, 72 and 90.To Find: Find HCF of 54, 72 and 90 by prime factorisation method.We know that highest common factor is multiplication of all common factor of prime factorization of all number, So: H.C.F = 2 ×3 ×3 =18. So HCF of 54, 72 and 90 by prime factorisation method is 18.

Step-by-step explanation:

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Answer 2

Answer:

HCF OF 54,72,90 IS 18 , answer is 18