Find the Highest Common Factor (HCF) of the numbers 310, 208, and 180.

Find HCF of 310, 208, and 180:

First, HCF of 310 and 208
Using Euclidean method:
310 − 208 = 102
208 − 102 = 106
102 − 106 = 4 (take difference)
106 − 4×26 = 2
4 − 2×2 = 0

So, HCF = 2

Now, HCF of 2 and 180 = 2

Final Answer: 2