What is the LCM of 40 60 70?

Answer 1

LCM of 40 60 70 is 840.

40 = 2 x 2 x 2 x 5

60 = 2 x 2 x 3 x 5

70 = 2 x 5 x 7

Using the largest exponent method

LCM = 23 x 31 x 51 x 71 = 8 x 3 x 5 x 7 = 840