Posted by **sam** on Monday, September 30, 2013 at 4:30pm.

The LCM of two numbers is 51. Both numbers are greater than 1 and both numbers are prime. What are the two numbers?

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**Steve**, Monday, September 30, 2013 at 4:31pm
well, since 51 only has two factors, it should be clear. what do you think?

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**sam**, Monday, September 30, 2013 at 4:45pm
Never did prime numbers before today. 51times 1 is the only 2 numbers. confused

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**Reiny**, Monday, September 30, 2013 at 4:53pm
Sam, I will give you a hint of what Steve is talking about.

Suppose you had to add

1/3 + 1/17

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**sam**, Monday, September 30, 2013 at 5:58pm
thank you. dont know how i missed 17.3

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