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Lê Anh Duy

31/07/2018 at 08:58
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23) There are two numbers: one has 6 divisors and one has 4 divisors. What is the minimum divisors of their product?


MinimumDivisor


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    Tôn Thất Khắc Trịnh 31/07/2018 at 14:11

    Mininum divisors? That is the number 1, obviously

    Or did you mean the minimum NUMBER of divisors?
    If so than it's 9, how you ask?
    To create less permutations with the divisors, the factors should overlap the most, hence, the 6 divisor number is a5 and the 4 divisor number is a3, so the product would be a8, having 9 divisors.


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