Question 219319
Find the LCM and the GCF for the set of ages.
Write each number in prime-factor form. 
Example: 
Shirley 50 = 2*5^2
Troy 60 = 2^2*3*5
Nicki 10 = 2*5
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LCM is the product of the different prime factors in their
highest power = 2^2*3*5^2 = 4*3*25 = 300
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GCF has the highest COMMON factor product = 2*5 = 10
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Cheers,
Stan H.