Question

what is hcf of 20 28 and 36

Answer 1

Hi !!

Prime factorization of 20 , 28 and 36

20 = 2 × 2 × 5
28 = 2 × 2 × 7
36 = 3 × 3 × 2 × 2

HCF = 2 × 2 = 4

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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