2 x 3 x 3 = 18
2 x 17 = 34
2 x 2 x 2 x 5 = 40
2 x 2 x 2 x 3 x 3 x 5 x 17 = 6120, the LCM.
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The Least Common Multiple (LCM) for 18 34 is 306.
NO. 18/20 is not proportional to 34/40. 18/20 : 34/40 by cross multiplication 18 * 40 = 20 * 34 720 ≠ 680 thus 18/20 is not proportional to 34/40
The least common multiple of 2 and 34 is simply 34, because 34 is divisible by both 2 and 34.
The LCM is: 34
The LCM is 850.