No
Yes 8 x 54 is 432
The LCM is: 432
No, think about your question for a second and you should be able to see why 144 is not a multiple of 432. The word multiple means more than or multiply. So to multiply 432 by 2 you get 864. Simply put, to be a multiple of a given number the multiple must be larger than said number. The multiples of 432 are 864, 1296, 1728.......just keep adding 432 to the number ad infinitum.
The LCM of 160 and 432 is 4320
LCM(27, 36, 48) = 432.
432
432
432
432
The least common multiple (LCM) is: 432
The LCM is: 432