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sally likes 245 but not 244,she likes 900 but not 800,she li

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sally likes 245 but not 244,she likes 900 but not 800,she likes 144 but not 145
which number she will like below?
A 1600 B.1500 C.2100 D.1800
我要知道为什么,
sally likes 245 but not 244,可看出,sally喜欢的数可被5整除.
she likes 900 but not 800,可看出,sally喜欢的数是一个完全平方数.
she likes 144 but not 145,可看出,sally喜欢的数可被8整除.
满足此三条件的只有A.