# The HCF of two numbers is 96 and their LCM is 1296. If one of the number is 864, then the other number is :

The HCF of two numbers is 96 and their LCM is 1296. If one of the number is 864, then the other number is :
[A]132
[B]135
[C]140
[D]144

144
First Numebr $\times$ Second Number = HCF $\times$ LCM
=> 864 $\times$ Second Number = 96 $\times$ 1296
$=> Second\ Number = \frac{96\times 1296}{864} = 144$
Hence option [D] is correct answer.