Question

what is the HCF of 40 and 20​

Answer 1

Answer:

20 is the answer to this question.

Step-by-step explanation:

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Answer 2

In context to question asked,

We have to determine the HCF of 40 and 20.

As we know that,

HCF of two or more number is that highest number which is common factor of the given numbers.

So, for determining the value of HCF of given number.

We will determine the prime factorisation of 40 and 20.

So, prime factorisation of 40 and 20 will be

$40 = 2\times 2 \times 2 \times 5\\20 = 2\times 2 \times 5\\HCF = Common\:Factors = 2\times 2 \times 5 = 20$

Hence, HCF of 20 and 40 will be 20.