Question

can 72 and 20 respectively be the LCM and HCF of two numbers. write down the reason
​

Answer 1

Answer:

No

Step-by-step explanation:

For a two numbers to have 20 as HCF would mean that the LCM would also be a multiple of 20(as both the numbers are multiples of 20)

You can understand it in the following manner:

if 2 is the HCF of 6&4 we know that 15 can't be a multiple of 2 i.e. 15 is not the multiple of their HCF2