fresinha12 wrote:

I wud say A...

(1) is obvious..

(2) lets say r=6 and s=12

then the prime factors of 6 are 2,3 and the prime factors of 12 are 2,3

6/12 is not a integer

however if r=12, s=6....then obviously r/s is an integer...

Note: the question stem is not very clear, it should say distinct prime factors...which is what I would take to be the case here...

So if we assume that the stem is: prime factors instead of distinct prime factors it means that factoring 12= 2x2x3=

We would include 2 twice..right? and therefore r/s would be an integer?

Thanks

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