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Re:marbles能再提示下吗？

Posted by marbles at 2007-08-07 21:01:29 on Problem 3307
In Reply To:marbles能再提示下吗？ Posted by:worton at 2007-08-07 20:53:04 
要求的数是只有因子2,3,5,7的数
然后搜索....
不超过10的18次,应该还是能过的..
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