math

the lcm of two numbers is 60. one of the numbers is 20. the other number is even and has only two prime factors. what's the other number

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  1. How about 6 ?

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    posted by Reiny
  2. I don't know just give me the answer people

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  3. It is '15' because if you find the factors of 60, only 15 is the number which can't divide 20 but 60 can be divided by it :) ;)

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    posted by Jawad

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