Q7 of 128 Page 25

Find g. c. d and l.c.m.

18, 12, 16

18 = 3 × 3 × 2

12 = 3 × 2 × 2


16 = 2 × 2 × 2 × 2


Therefore, g. c. d(18, 12, 16) = 2


And l.c.m.(18, 12, 16) = 2 × 2 × 2 × 2 × 3 × 3 = 144


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