Question

Find the HCF of 20, 28, & 26.​

Answer 1

Answer:

In this prime factorization, we express each number as a product of its prime factors. The product of all such common prime factors is the HCF of the given numbers.

Prime factorization of 20 is  2 × 2 × 5 

Prime factorization of 28 is 2 × 2 × 7

Prime factorization of 36 is 2 × 2 × 3 × 3

Common factors of 20, 28, and 36 are 2, 2

HCF(20,28,36) = 2 × 2 = 4

Therefore, The HCF of 20, 28, and 36 is 4.

Step-by-step explanation:

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Answer 2

Answer:

HCF of 20, 28 and 36 = 4

Step-by-step explanation:

We have ,

20 = 2 × 2 × 5 = 2² × 5¹

28 = 2 × 2 × 7 = 2² × 7¹

and

36 = 2 × 2 × 3 × 3 = 2² × 3²

HCF ( 20,28,36 ) = 2² = 4

/* Product of the smallest power of each common prime factors of the numbers */

Therefore,

HCF of 20, 28 and 36 = 4

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