One of the primes is greater than 2 and less than 6. That makes it either 3 or 5. None of the options is a multiple of 5. Thus, we have to look for a multiple of 3.

Only A and E. 3*6 = 18, and 6 is not prime. Thus, answer is E, where 51 = 3*17
IMO, Sub-600 level.
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Option B & C can be ruled out as they themselves are prime numbers

18 = 2*9 = 3*6 >> Ignore

44 = 2 * 22 = 4 * 11 >> Ignore

51 = 3*17 >> Answer

Answer = E

Hi All,

This question is built around a variety of Number Properties, and you can use those same Number Properties to quickly get to the correct answer:

We're told a series of facts about 2 numbers:
1) They're both PRIME
2) Their PRODUCT is between 17 and 55
3) One number is between 2 and 6
4) The other number is between 13 and 25

We're asked for the product that fits these "restrictions"

First, since both numbers are PRIME and NEITHER can be "2", both numbers are ODD.
Second, (odd)(odd) = odd, so the answer MUST be ODD.
Third, the answer CANNOT be prime, since it has these 2 smaller prime numbers as factors.

So, eliminate the EVENS (Answers A and D) and the PRIMES (Answers B and C).

Final Answer:

GMAT assassins aren't born, they're made,
Rich
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