Question

Find the LCM of the following numbers by prime factorisation method -
(1) 48 and 60
(2)30,36 and45
(3)112,168 and 266​

Answer 1

Answer:

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Answer 2

Solution:

1). 48 = 2 x 2 x 2 x 2 x 3 = (2)4 x 3

60 = 2 x 2 x 3 x 5 = (2)2 x 3 x 5

L.C.M = (2)4 x 3 x 5

= 240

2) LCM of 30, 36 and 45 = (2)2 x (3)2 x 5

= 180

3) LCM of 112, 168, and 266 = (2)4 x 3 x 7 x 19

= 6384