Question

H.C. F of 20, 15
With sum ​

Answer 1

Answer:

5

Step-by-step explanation:

In HCF we need to find the highest factor that is common for the two numbers.

So, first we list the factors of 15 and 20

15 - 1, 3, 5, 15

20 - 1, 2, 4, 5, 10, 20

Here we need to pick a number which is common as a factor for both 15 and 20.

So, we can see that the number 5 and 1  are common,

Hence, we infer that 5 is the HCF as 5 > 1.