Q) Find by prime factorisation the LCM of the numbers 18180 and 7575. Also, find the HCF of the two numbers.
Ans:
By prime factorisation, we get:
18180 = 22 x 32 x 5 x 101
and 7575 = 3 x 52 x 101
LCM = 22 x 32 x 52 x 101
LCM = 90900
And HCF = 3 x 5 x 101
HCF = 1515
Therefore, LCM of given numbers is 90900 and HCF is 1515