Question

7. Find HCF of the number k, 2k, 3k, 4k and 5k, where k is a positive integer ​

Answer 1

Step-by-step explanation:

Given number are K, 2K, 3K, 4K & 5K

where K is any positive integer.

Now K=K

2K=2×K

3K=3×K

4K=2×2×K

5K=5×K

In all these numbers highest common factor is K.

Hence HCF of all given number is K