Smallest Number with 28 Positive Divisors

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Homework Statement


Find the smallest number with 28 positive divisors.

28 = 14*2 or 7*4.

So, it is either 2^13*3 or 2^6*3^3, right?

Because 2^7 is manifestly larger than 3^2, it the latter, correct?

Homework Equations


The Attempt at a Solution

 
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