Question

lcm of 120 160 and 180

Answer 1

Multiples of 120, 160 and 180 are -

120 = 120, 240, 360, 480, 600, 720, 840, 960, 1080, 1200, 1320, 1440

160 = 160, 320, 480, 640, 800,  960, 1120, 1280, 1440, 1600

180 = 180, 360, 540, 720,  900, 1080, 1260, 1440, 1620, 1800

Common multiple of 120, 160 and 180 is 1440.

Therefore, LCM of 120, 160 and 180 is 1440

Answer 2

120 = 2³ x 3 x 5
160 = 2⁵ x 5
180= 2 ² ×3²×5
LCM = 2⁵ x 3² x 5
         = 1440