Question

find the hcf of15and40​

Answer 1

40= 15(2)+10

15= 10(1)+5

10= 5(2)+0

therefore 5 is the HCF

Answer 2

Answer:

The HCF of 15 and 40​ is 5.

Step-by-step explanation:

Given: The numbers are 15 and 40​.

We have to find the HCF of the above numbers.

• As we know, the HCF (Highest Common Factor) of two or more numbers is the highest number among all the common factors of the given numbers.
• HCF is also known as the greatest common factor.

We are solving in the following way:

We have,

The numbers are 15 and 40​.

First, we will find the factors of the above numbers.

The factors of 15 are: $1, 3, 5, 15$

The factors of 40 are: $1, 2, 4, 5, 8, 10, 20, 40$

From the above, we can see that 5 is the highest number among all the common factors of the given numbers.

So, the greatest common factor(HCF) is 5.