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If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then y must be
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3150=3^2*7*2*5^2
要使3150*y是一个整数的平方，那么至少要使这个式子包括每种质因子有2的倍数个。所以y最小应该是14
如果有时间的话我也能做对
考试时候可以用计算器开根号不？
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2021-07-10 02:35:19
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