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标题: 这题真的一脸懵,求大神帮忙!!! [打印本页]

作者: 听力不太好    时间: 2020-11-8 15:48:40     标题: 这题真的一脸懵,求大神帮忙!!!

143. x and n are positive integers, such that 7???? = 10???? ? 1. What is the 99th smallest possible value of n?




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