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问题:今有物不知其数,三三数之剩二,五五数之剩三,七七数之剩二。问物几何? 简单点说就是,存在一个数x,除以3余2,除以5余三,除以7余二,然后求这个数。上面给出了解法。再明白这个解法的原理之前,需要先知道一下两个定理。 定理1:几个数相加,如果存在一个加数,不能被整数a整除,那么它们的和,就不能被 阅读全文
摘要:
Description Some people believe that there are three cycles in a person's life that start the day he or she is born. These three cycles are the physic 阅读全文