Question

LCM of 52 78 108 117​

Answer 1

Given : 52  , 78 , 108 , 117

To Find : LCM

Solution:

52 = 2 * 2 * 13  = 2² * 13¹

78 = 2 * 3 * 13  =  2¹ * 3¹ * 13¹

108 = 2 * 2 * 3 * 3 * 3 = 2² * 3³

117 = 3 * 3 * 13  = 3² * 13¹

LCM = product of each factor  of highest power  

LCM =  2² * 3³ * 13¹

=  1404

LCM of 52 78 108 117​ is 1404

Learn More:

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Answer 2

Step-by-step explanation:

(52 - 33) = 19, (78 - 59) = 19 and (117 - 98) = 19

LCM of 52, 78 and 117 is 468.

Required least number = 468 + 19 = 487

Sum of digits of 487 = 4 + 8 + 7 = 19.

Hope its help...