GMAT Prep2?? (Primes)

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by aatech » Wed May 14, 2008 10:37 am
2*2*2*2*2*2 = 64

2*2*2*2*2*3 = 96

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by Carlo75 » Thu May 15, 2008 8:31 am
64= 2x2x2x2x2x2 so its length is equal to 6
96= 2x2x2x2x2x3 so its length is equal to 6

The last try to find another two digit number-with length equals to 6 is to substitute the last 2 of the number 96 with 3, the result is:
2x2x2x2x3x3= 144 that's a three-digit number. Therefore, the answer is TWO.