How do you get the LCM for 54 and 80?

Answer 1

Prime factors of 54 are 2 x 33

Prime factors of 80 are 24 x 5

The LCM is the product of all the primes to their greatest power,

so the LCM of 54 and 80 is 24 x 33 x 5 = 16 x 27 x 5 = 2,160