360

2*2*3*3*4*5=720

12=2*2*3

18=2*3*3

40=2*4*5

12=2*2*3

18=2*3*3

40=2*4*5

12 = (2^2)(3)

18 = (2)(3^2)

40 = (2^3)(5)

The LCM of these numbers is (2^3)(3^2)(5) =

18 = (2)(3^2)

40 = (2^3)(5)

The LCM of these numbers is (2^3)(3^2)(5) =

**360**