T7iffa7nesGilla T7iffa7nesGilla

08-11-2016
Mathematics

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The greatest prime factor of 75 is how much greater than the least prime factor of 81

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SchooledBoy SchooledBoy

08-11-2016

75 is 5*5*3 it's greatest prime factor is 5.
81 is 3*3*3*3 it's least prime factor is 3 .

so the answer is 2. 5 is greater than 3 by 2

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