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任何一个质数加上1后就是偶数． ．
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任何一个奇数加上﹣个后和一定是一个奇数．
偶数
质数
合数
奇数
一个偶数结果就是与它相邻的奇数．
乘2
减去3
除以2
加上1
下列叙述的几组数中的最大公因数是1．
两个不同的质数
两个不同的奇数
一个质数和一个合数
一个奇数和一个偶数
一个自然数不是偶数就是奇数不是合数就是质数．．判断对错
一个非零自然数按它的因数的个数可分为
奇数和偶数
1．质数和合数
质数和偶数
任何一个偶数加上1一定是一个奇数．．判断对错
一个自然数不是质数就是合数不是偶数就是奇数．．判断对错
任何一个偶数加上1结果都是奇数．判断对错
任何一个奇数加上1一定是数任何一个偶数加上1一定是数．
任何一个质数加上1必定是合数．．判断对错
任何一个自然数不是奇数就是偶数不是质数就是合数．判断对错
下列说法中有错误的是
最小的质数是2。
最小的偶数是0。
0是任何一个整数的倍数。
一个非零自然数按它的因数的个数可分为
奇数和偶数
质数．合数和 1
质数和偶数
有一个四位数能被72整除其千位与个位之和为10个位数是为质数的偶数去掉千位与个位得到一个新数为质数这
8676
8712
9612
8532
一个质数加上合数和可能是
奇数
偶数
奇数或偶数
一个偶数与一个奇数相乘的积是
偶数
奇数
质数
合数
一个奇数如果结果是偶数．
加上一个偶数
乘1
加上一个奇数
除以1
一个数不是质数就是合数不是奇数就是偶数．．判断对错
一个质数加1后和是
奇数
偶数
奇数或偶数
无法讨论
任何一个质数加上1必定是合数．．判断对错
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