LCM- Least Common Multiple

LCM = 7 x 2 x 2 x 2 x 5 = 280

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LCM = 2 x 2 x 2 x 2 x 2 x 2 x 5 = 320

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LCM = 3 x 2 x 3 x 2 x 2 = 72

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LCM Steps      

• Prime Factor Trees
• Write out all Prime Factors
• Write all of the same factors in the middle
• Leftover factors write on  each side
• LCM = Multiply ALL numbers in ALL of the circles together