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OpenStudy (anonymous):
What is the least positive integer k for which 15k is the cube of a number?
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OpenStudy (mayankdevnani):
If k = 225 then 15k = 3375 = 15^3 There cannot be a smaller one. Since 15 = 3*5 which are both prime numbers, the cube must be (3^3)*(5^3) = 3375. http://answers.yahoo.com/question/index?qid=20080916035020AAsBCsE
OpenStudy (mayankdevnani):
ok @Areesha.1D
OpenStudy (anonymous):
No i still dont understand. What is the rule or principle fr basic understanding of this?
OpenStudy (anonymous):
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