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标题: 狒狒数学一题看不懂。。。 [打印本页]

作者: taoyeye 时间: 2008-10-22 07:10 标题: 狒狒数学一题看不懂。。。

看不懂这道题什么意思。。。高手帮忙解释一下吧！

For all x, x is positive integer. "2-height" is defined to be the greatest nonnagative n of x, what is the greatest number of the 2-height when 2" is the factor of x?

A. 2

B.12

C.40

D.76

E.90

作者: tomatohuas 时间: 2008-10-23 06:43

For all x, x is positive integer. "2-height" is defined to be the greatest nonnagative n of x, what is the greatest number of the 2-height when 2^n is the factor of x

简单讲就是找哪个数能被2^n整除得到最大的n 40=2*2*2*5 2-height=3

作者: taoyeye 时间: 2008-10-24 06:47

For all x, x is positive integer. "2-height" is defined to be the greatest nonnagative n of x, what is the greatest number of the 2-height when 2^n is the factor of x

简单讲就是找哪个数能被2^n整除得到最大的n 40=2*2*2*5 2-height=3

作者: taoyeye 时间: 2008-10-24 06:47

就是看这些数哪个包含的2这个因子多

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