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标题: gwd10-15 [打印本页]
作者: qurssrou    时间: 2009-9-11 06:55     标题: gwd10-15

If n is the product of the integers from1 to 20 inclusive, what is the greatest integer k for which 2k is a factor of n?

 

A.   10

 

B.   12

 

C.   15

 

D.   18

 

E.    20

 





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