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最大的三位偶数是多少
更新时间: 2020-10-30 00:00:00  

最大的三位偶数是998。偶数是能够被2所整除的整数,正偶数也称双数。若某数是2的倍数,它就是偶数可表示为2n;若非它就是奇数,可表示为2n+1(n为整数)即奇数除以二的余数是一。在十进制里,可以看个位数判定该数是奇数还是偶数:个位为1,3,5,7,9的数是奇数;个位为0,2,4,6,8的数是偶数。

关键词: 偶数 多少

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