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If N is an odd integer between 2 and 30, how many distinct prime factors does it have?

3 is not a factor of N 5 is not a factor of N

Answer : A

stat1: any number N b/w 2 & 30 that is not a multiple of 3 has only one prime factor. suff

stat2: if N= 3 then 1 prime factor; if N=21 then 2 prime factors. insuff

For... St A... I first thought u missed 25... everything else was a prime number... then realized 5*5 still means only one prime factor and 25 is not a prime factor.

I made the mistake of selecting C then realized that the only # that is a multiple of 5 is 15 and 25. 15 has 3 as a multiple so we can eliminate it and 25 has only 5 as a factor.

I made the mistake of selecting C then realized that the only # that is a multiple of 5 is 15 and 25. 15 has 3 as a multiple so we can eliminate it and 25 has only 5 as a factor.

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Essay B for Stanford GSB will essentially ask you to explain why you’re doing what you’re doing. Namely, the essay wants to know, A) why you’re seeking...

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