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If two composite numbers are relatively prime and their least common multiple is 126, find the sum of these two numbers.

 Jul 17, 2021
 #1
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9 + 14 = 23

 Jul 17, 2021
 #2
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Hi mworkhard222

 

If two composite numbers are relatively prime and their least common multiple is 126, find the sum of these two numbers.

 

factor(126) = (2*3^2)*7 = 2*7*3*3

 

the two 3's must go together, 9  so the other number must be 14  They are the only composite numbers that work.

 Jul 21, 2021
edited by Melody  Jul 21, 2021

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