what is the lcm for 54 and 72

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waltjhall · Answer 1 · 2011-12-20T17:40:36+0000

54 = 2 * 3 * 3 * 3

72 = 2 * 2 * 2* 3 * 3

2 * 3 * 3 is common or the GCF = 18

LCM = 18 * 3* 2 * 2 = 72 * 3 = 216