Question

HCF of 21,35,50 find their hcf​

Answer 1

In context to questions asked,

We have to determine the value of HCF of given number.

As per questions,

It is given that

Number - 21,35,50

As we know that,

HCF of two or more numbers is the highest value of number which is common factor of both the number.

So, we will use prime factorisation for determining the HCF.

So, prime factorisation of 21,35,50 will be

$21 = 3 \times 7 \\ 35 = 5 \times 7 \\ 50 = 5 \times 2 \times 5 \\ hcf = 5 \: common \: number$

Hence HCF of 21,35,50 will be 5

Answer 2

Given: The numbers are$21,35,\ and\ 50$.

We have to find the HCF of$21,35,\ and\ 50$.

As we know that the greatest common divisor of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers.

We are solving in the following way:

We have,

The numbers are$21,35,\ and\ 50$.

The factors of $21$are: $1, 3, 7, 21$

The factors of $35$are: $1, 5, 7, 35$

The factors of $50$are: $1, 2, 5, 10, 25, 50$

Then the greatest common factor is$1$.

Hence, the HCF of the above numbers is$1$.