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LCM

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Rounded Rectangular Callout: In Algebra 10r3s=2*5*r*r*r*s 15r2s2=3*5*r*r*s*s Multiply the factors that are common to both expressions by the factors that are not common LCM=2*3*5*r*r*r*s*s=30r3s2 Rounded Rectangular Callout: In Arithmetic Find the LCM of 18 and 24 First write the prime factorization of each number 18=2*3*3 24=2*2*2*3 Multiply the factors that are common to both numbers by the factors that are not common. LCM=2*3*3*2*2=72