Question

find the Hcf 12,18 and 20 b) 256

Answer 1

let us represent each number as product of prime factors

12 can be written as 2 × 2 × 3

18 can be written as 2 × 3 × 3

20 can be written as 2 × 2 × 5

we can see that only 2 is common to all the numbers so 2 is the highest common factor of 12, 18, 20.

Answer 2

Answer:

2 is the answer

Step-by-step explanation:

so, the 18,20,12 as product of prime factors can be represented as :-

12 = 2 × 2 × 3

18=2 × 3 × 3

20= 2 × 2 × 5

so, only 2 is common to all the numbers.

therefore, 2 is the HCF.

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