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给你参考吧,但我的方法不一定好,不知道大牛门怎么处理的

Posted by cx19860824 at 2007-03-07 16:02:10 on Problem 3209
In Reply To:Re:这么大的数N如何分解质因数？ Posted by:cx19860824 at 2007-03-07 16:01:26 
> 我用的筛法先找出了所有n^(1/3)的质数,如果n能分解成3个以上的话,这是肯定可以通过前面找到的,判断完后n只可能是质数或者两个的积,测试n是否两个的积是很难的,所以可以测试它是否质数,以及它自身是否完全平方数,如果都不是,那就没问题了,但是这里测试质数我遇到了困难,没想到直接当成YES输出就AC了,测试数据欠缺特殊情况
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