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Source: GMAT Prep
For any positive integer n, the length of n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75=3*5*5. How many two-digit positive integers have length 6?
A. None
B. One
C. Two
D. Three
E. Four
The OA is C
For any positive integer n, the length of n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75=3*5*5. How many two-digit positive integers have length 6?
A. None
B. One
C. Two
D. Three
E. Four
The OA is C
