Question

the product of two numbers is 720 their HCF is 4. find their LCM​

Answer 1

Answer:

Let the two numbers be x and y. Now according to the information given in the question,

x*y = 720

HCF of x,y = (LCM of x,y)/5

So LCM of x,y = 5*(HCF of x,y)

Now, there is a very simple relationship between the HCF, LCM and product of two numbers, i.e.

HCF × LCM = Product of two numbers

If we substitute the values, then we'll get

HCF × 5 × HCF = 720

(HCF)² = 720/5

(HCF)² = 144

HCF = 12

Answer 2

Answer:

LCM  = 180

Step-by-step explanation:

Using property Product of 2 numbers = HCF x LCM

720 = 4 x LCM

LCM = 720/4

LCM =180