Question

Find the HCF of 2,15. Can we say that they are co- prime? Is it always True?​

Answer 1

Answer:

1

Step-by-step explanation:

HCF of 2 and 15 is 1

Answer. # two integers a and b are said to be relatively prime, mutually prime, or coprime if the only positive integer that divides both of them is 1.

hope it will help

Answer 2

Answer:

The HCF is $1$.

It is not always true.

Step-by-step explanation:

We need to find the HCF of $2$ and $15$.

Highest Common Factor of two numbers is the greatest number which divides each of the two or more numbers.

In other words, the greatest factor which is common in both numbers.

Factors of $2=1,2$

Factors $15=1,3,5$

In both, the common greatest factor is $1$.

Hence, HCF is $1$

Two integers are said to be coprime if the only positive integer that is a divisor of both of them is one.

Here, it is true. They are co prime.

It is not always true.

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